Answer:
5( 4w -3)
Step-by-step explanation:
just pulled out a 5
3 sig figs in the final answer since the denominator has 3 sig figs. So the answer would be 4.05
C = 2 * (pi) * r
C = 2 * 3.14 * 3
C = 6 * 3.14
C = 18.84 <===
Substitute on equation 2, y = -4x + 7. so equation 1 becomes 2x - (-4x + 7) = 6x - 7 = 5. 6x = 12, so x = 2. from above, y = -4x+7 = -4(2) + 7 = -1