The manager of a coffee shop has one type of coffee that sells for $10 per pound another type that sells for $15 per pound the manager wishes to mix 90 pounds of the $15 coffee to get a mixture that will sell for $12 per pound how many pounds of the $10 coffee should be used

81 seats

step-by-step explanation:

if you multiply 0.65 times 125 then you get 81.5 seats. well since you can't have half of a seat you have to round down and get 81 seats in the no children zones. that leave 44 seats outside of the no children zone.

if you are saying purchasing 3 social media ads and one newspaper ad counts as one purchase then there are:

6 purchases

if you are asking how many of each then:

18 social media ads

6 newspaper ads

3x + 4y -25 =0 represents the amount of change sianna should recieve

nope.   happens to me as well.

-aparri