A plant is already 13.25 meters tall, and it will grow 9 centimeters every month. The plant's height, H (in meters), after x months is given by the following. H=0,09x+13,25
What is the plant's height after 20 months?
PLEASE HELP ME SOLVE THI

H = 0.09 (20) + 13.25

H = 1.80 + 13.25

H = 15.05 m

step-by-step explanation:

area of part 1:

a1=base*height/2=(8+2)*(8-2-2-1)/2=10*3/2=15 ft^2

area of part 2:

a2=length*width=(8+2)*1=10 ft2

area of part 3:

a3=length*width=8*2=16 ft2

total shaded area : a1+a2+a3=41 ft2

total area of the reactangle : a=16*8=128 ft2

total area of the nonshaded region : 128-41=87 ft2