Answer:
1.5%.
Step-by-step explanation:
The fractional increase is 15,000,000 / 1,000,000,000
= 15/1000
= 15 * 100 / 1000
= 1.5%
Answer:
x = -5
Step-by-step explanation:

You lost $40 because you have to subtract 30 from 70
Answer:
the variable term 5Y
Step-by-step explanation:
4x+5y=15
+
6x-5y=18
_________
10x=33 divide by 10
x=3.3