Step-by-step explanation:
9) C
10) B
11) (b-5)(b+8)
12) (7w - 2)²
13) 14(5x + 2)(3x - 1)
14) (4h - 1) and (h + 6)
15) 3 and (a - 2) and (a + 8)
16) 5 and (4w - 1) and (w + 2)
We have a system of equations in two variables, namely, a and c. Use the substitution to find a and c.
Answer:
2.6
Step-by-step explanation:
$9.99 is 15% if $66.60 which totals up to $76.59.
Answer a-$10.05 estimate