Answer:
17*10^8, about 4 times
7.839*10^6, about 4 times
8.5*10^8, about 2 times
15 dollars / hour, and he spent 3 hours, so you do 3*15=45 dollars
You then add the 45 to the 32 dollars for parts, so the total would be 77 dollars
Answer:B
Step-by-step explanation:0.4 times 0.25=0.1
1/0.1= 10
Answer:
y = -5
Step-by-step explanation:
Step 1: Translate
"Sum" is addition
"a number y" is y
"-3" is -3
"is -8" means equal to -8
Step 2: Set up equation
y + -3 = -8
Step 3: Solve for <em>y</em>
- Simplify: y - 3 = -8
- Add 3 to both sides: y = -5
