The score range that sally would have to make a 90 average is 85-100
Answer:
$84.75 over budget
Step-by-step explanation:
Barts' budget is 285.75
Bills: 240 + 130.50 = $370.50
(subract by his budget)
370.5 - 285.75 = $84.74
:)
If a 12 oz bottle of shampoo lasted for 16 weeks, we have a ratio of 12:16 which can be shortened to 3:4.
Now if we have 18 oz bottle we know that it's 1/2 more than 12 oz bottle, so the ratio will be also 1/2 more. So if it was 12:16, the new ratio will be:
12 + (1/2 * 12) : 16 + (1/2 * 16)
12 + 6 : 16 + 8
18 : 24
It means that 18 oz bottle should last for 24 weeks. Of course the ratio has to stay the same in its lowest form in both situations and as 18:24 can be shortened to 3:4, it proves it's correct :)
A. 1690.
You can get this answer by doing 13 to the power of 2 and then multiplying that answer by 10.