Answer:
x = 1
Step-by-step explanation:
7x - 3 = 4x
-3 = 4x - 7x
-3 = -3x
so we subtract 3x from each side to get 7x-3x-3=3x-3x. we simplify to get 3x-3=0. now we can add three to both sides to get 3x=3. now divide both sides by three to get 3x/3=3/3 which is x=1.
D
Stan works for 28 hours and gets paid $12 for each hour, so the amount of money he gets in total is $12*28 = $336.
V=pi×r^2×h
36pi =pi × (3)^2 × h
36pi ÷ pi×9 = h
4cm^2 = h
