Answer:
3.15
Step-by-step explanation:
4.99x.45=2.25 discount
4.99-2.25=2.74 sales price
2.74x.15=.41 sales tax
2.74+.41=3.15 total price
Answer: I think A
Step-by-step explanation:
Answer:
The age of Jenny=21 years
The age of Steve=9 years
Step-by-step explanation:
So... Let's make their age into unknown variables so it's easier to decipher:
Jenny's age: x
Steve's age: y
If 5 years ago Jenny was four times older than Steve the equation would look like:
y+12-4y=-15
First, you add like terms:
y+12-4y=-15
y-4y=-15-12
Now isolate the unknown variable:
3y=-27
y=9
But this was 5 years ago, and Jenny is 12 years older than Steve so add those two together:
9+12=21
Hope this helped!