I need answer ASAP!!

31×8 for your triangle. you have 4 cm on each side. think of it like your triangle just spilled out a rectangle. It's still there, just covered. 23+4+4 =23+8=31. A=L×W. your rectangle is 23×10. 230+(31×8) will give you your answer

-13

step-by-step explanation:

f(x)=2x-5 for f(-4)

f(-4)   means let x=-4

f(-4) = 2(-4) -5

f(-4) =-8-5

      = -13

it will be a cylinder. with a diameter of 8 and 4 single pieces high

step-by-step explanation: