24. In a given class room, the numer of girls is ten greater than the y number of boys. If the ratio of the number of girls to the number
boys is 7:5 then find
a. the number of girls ?​

soo this can be solve by using the formula:

f = p( 1 + i)^ n

where f is the future profit

p is the initial profit

i is the percent increase

n is the number of years

a . f = 30000 ( 1.05)^n

b. f = 30000 ( 1.05)^15

f = $62,368

to find the perimeter, you add up all the lengths of the sides. in this case you would have to add up 18+22+40+80 which equals 160.