Solve the following equation for the variable, b.
A = 1/2bh

21 i watched a 3 hr vid explaining it

step-by-step explanation:

du what else would it be

brainliest

in the attachment.   i didn't see your choices.   the word which means there is choices.

step-by-step explanation:

(x,y)

x tells you how much left or right you go from the origin

y tells you how much down or up you go from the origin

so for example (-3,2), you go left 3 and up twice. i denoted which of the ordered pairs is which in my graph.

cross multiplying, we get :

⇒ (3) × (5) = (9) × (x)

⇒ 15 = 9x

the answer is b.

64

step-by-step explanation:

c=2πr=2·π·8≈64