WILL GIVE BRAINLEST HELP ASAP PLEASE

1) Find the approximate area between the curve f(x)=-2x + 32x + 5 and the x-axis on the interval (0,16] using 4 rectangles. Use the left endpoint of each rectangle to determine the height.

A) 2304 square units

B) 576 square units

C) 320 square units

D) 1360 square units

2) Find the approximate area between the curve f(x)= -4x^2+32x and the x-axis on the interval [0,8] using 4 rectangles. Use the right endpoint of each rectangle to determine the height.

A) 1152 square units
B) 320 square units
C) 288 square units
D) 160 square units