Jennifer bought 12 pens. Out of 12 pens, 7 are blue and the rest are red. What is the ratio of the number of red pens to the total number of pens?

The answer is 5:12

Step-by-step explanation:

It is 5:12 because We already know that 7 pens are blue. To find the number of red pens we must subtract 12 - 7 and get 5 as the number of red pens. Now knowing the no. of red pens and total number we can say the ratio of red pens to total no. is 5:12

11

step-by-step explanation:

32.50-7.50=25

225/25=11