subsitute 3 as x
f(3) = (1/7) × (7^3)
f(3) = 1/7 × 343
f(3) = 343 ÷ 7
f(3) = 49
Answer:
D
Step-by-step explanation:
i dont know why i used my calculator lol
28/3 or 9⅓
2/3 = x/14
x = 2×14/3
x = 28/3
A = (2x+1)(3x+4)
Area is length × height