Answer:
$8.5
Step-by-step explanation:
I think your question is missed of key information, allow me to add in and hope it will fit the original one.
<em>Dave also starts a new job, but his hourly pay starts at $7.25. Suppose that he gets a 40¢-per-hour raise each year.
What will Vicky’s hourly pay be in 3 years</em>
My answer:
Given:
- Rate per hour: $7.25.
- Hour raise each year: 40¢-
=> the percentage of rate increasing:
(40¢ / $7.25)*100%
= (40¢ / 7.25*100¢)*100%
= 5.5%
What will Vicky’s hourly pay be in 3 years
This is a compound growth problem. The formula is:

<=> F = 
<=> F = $8.5
So the rate after three years is $8.5
Hope it will find you well.
Answer:
5341
Step-by-step explanation:
1 recipe ......2 5/8 = 21/8
1/2.................?
21/8 * 1/2
= 21/16
= 1 5/16
The ratio between the perimeters of two similar polygons is the same as the ratio between the corresponding sides.
12:15=30:x
12x=15*30
12x=450
x=450/12=37.5
37.5 is the answer.