12.65+21.55=34.20
34.20*.15=5.13
.15 is the percentage of the tip they pay in decimal form in order to multiply it on a calculator.
Answer is $5.13
Answer:
First one I think. I hope this helps.
Step-by-step explanation:
Just convert the fractions into decimals. You can use a calculator.
Answer:
The answer is B! if you want to do more of these problems may I recommend using Desmos?
Answer:
0 (zero)
Step-by-step explanation:
Plug in the variable for -4 and solve
y= 2(-4)2-4(-4)
y= -8(2)-4(-4)
y=-16+16
y=0