4x(-2) + 4 x 7 4x5 + 2x(-1) =[-8 20]
[28 -2 ]
Answer:
20%
Step-by-step explanation:
A pair of jeans cost $45 before the sale.
The sale is taking $9 off of the original price.
Then
$45 - 100%
$9 - x%
Write a proportion:

Cross multiply:

Answer:
There is no solution for this set of equations.
The sum of two numbers can not have two different solutions.
Answer:
a) 2.7 sec
b) 2.6 sec
c) 30.3 ft, 1.3 sec
Step-by-step explanation:
graphed the equation and determined answers from the curve