There are 16 girls and 20 boys in the school band.
what is the ratio of girls to boys ?

To get the ratio we have to put into numerator number of girls and into denominator number of boys. Then simplify it

It also can be denoted as 4:5

5

1. 0.3 •4 is the same as 4 groups of 0.32. 7•0.8 is the same as 7 groups of 0.83. it increases by 0.5 every time, so 0.5x4 it increases by 0.9 every time, so 0.9x5. 0.9•12=10.86. 0.47•5=2.35i can finish the next ones in a separate post