Answer:
8x^2 - 4x - 5
See the steps below for better explanation:
Thinking about y = mx + b or f(x) = mx + b where m is the slope (rate of change) and b is the y-intercept (fixed fee or initial cost) you would get the following equation:
$25 fixed service call fee = b
$15 for each hour = m
ANSWER ⇒ f(h) = 15h + 25
0.(8-0.2w)=-4
W=90
hope this helps! :)
Answer:
7 and -6
Step-by-step explanation:
7 + (-6) = 1
7 * (-6) = -42
Answer:
5 feet
Step-by-step explanation:
"Twice as tall" means "2 times as tall".
2 × (2 1/2 ft) = (2 × 2 ft) +(2 × (1/2 ft)) = 4 ft + 1 ft = 5 ft
The child's mother is 5 feet tall.