Me plz explain your answer & answer both questions

a) 81

b) 79.38

Step-by-step explanation:

50% of 162 is half of 162. Since 50% is close to 49%, this is a good estimate. 162/2=81.

To find the exact value of 49%, I will take my estimate of 81 and subtract 1% to get 49% of 162. To find 1% I can divide 162 by 100 which is 1.62.

I subtract 81-1.62= 79.38.

stop using this to cheat on home work

step-by-step explanation:

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the ratio of grapes to blueberries she should use is 12: 3

step-by-step explanation:

if mandie is making 15 cups of fruit salad, the ratio of grapes to blueberries she should use is 12: 3.