90.00 dollars interest 10% how much will she have in 2 years.

if it is an anual rate, she will end up with $91.80

Step-by-step explanation:

10% of 90 is 9 cents and if it is anual, it will double, bc its 2 years, ending up with $91.80...which is a garbage amount of earnings

36 girls

step-by-step explanation:

the 48 boys is 4 parts of the ratio

divide 48 by 4 to obtain one part of the ratio

= 12 ← 1 part of the ratio

3 parts = 3 × 12 = 36 ← number of girls