Calculate the area of the lawn.

Area of the lawn $= s^2=(15\ \text{ft})^2 = 225$ square feet

You charge $0.20 per square foot.

Use the area of the lawn and the price per square foot to calculate the amount you will charge.

Total price you will charge $= ( \frac{$0.20}{\text{square foot}})(225\ \text{square feet}) = $45$

Calculate the area of a single flower bed.

Area of a single flower bed $= \frac{1}{2}bh = \frac{1}{2} (6\ \text{ft})(5\ \text{ft}) = 15\ \text{ft}^2$

The organization has 4 flower beds.

Use area of a single flower bed and the number of flower beds to calculate the total area of the flower beds.

Total area of the flower beds $= (4)(15\ \text{ft}^2 )=60\ \text{ft}^2$

The organization will pay you $0.45 per square foot.

Use the area of the flower beds and the price per square foot to calculate the amount you will earn.

Total amount you will earn $= (\frac{$0.45}{\text{square foot}})(60\ \text{square feet}) = $27.00$

Calculate the area of the lawn.

Area of the lawn $= s^2 = (10\ \text{ft})^2 = 100\ \text{ft}^2$

Calculate the area of a single flower bed.

Area of one flower bed $=\ \frac{1}{2}bh = \frac{1}{2}(10\ \text{ft})(5\ \text{ft}) = 25\ \text{ft}^2$

The neighbor has 2 flower beds.

Use area of a single flower bed and the number of flower beds to calculate the total area of the flower beds.

Total area of both flower beds $= (2)(25\ \text{ft}^2 ) = 50\ \text{ft}^2$

Calculate the area of the entire job by adding the total area of both flower beds to the total area of the lawn.

Total area for the entire job $= 100\ \text{ft}^2 + 50\ \text{ft}^2 = 150\ \text{ft}^2$

The neighbor will pay you $1.00 per square foot.

Use the total area of the entire job and the price per square foot to calculate the amount you will earn.

Total money earned for the job $= (\frac{$1.00}{\text{square foot}})(150\ \text{square feet}) = $150$