There are 15 boys and 21 girls in a class. Write the simplified ratio of boys to students in three different ways.

5:7

Step-by-step explanation:

One way is to

divide both terms by the greatest common factor (GCF), 3:

15 ÷ 3 = 5

21 ÷ 3 = 7

So it would be 5:7.

Another way is to simplify the numbers, so

15 simplified is 5

21 simplified is 7

So it would be 5:7.

Super sorry but couldn't find another one :C.  

30 units^2

step-by-step explanation:

area is l × w

the length is 3

and the width is 10

3 × 10= 30 units squared

x^3-4x^2+3x-2/x^2+1

step-by-step explanation:

factor the numerator and denominator and cancel the common factors