Answer:
-3
Step-by-step explanation:
-7b = 21
/ -7 / -7
b = -3
70%
12+27+91 = 130
91/130 = .7
.7x100 = 70%
___
.700
7.00
70.0
Answer is 70%
Answer:
y=2x+3
Step-by-step explanation:
the normal charge is 3 + 2 x number of days so this equation is the correct one.
Answer:

Step-by-step explanation:
Move all terms to the left side and set equal to zero. Then set each factor equal to zero.