Awireless phone company determines that 12 out of every 350 model a phones are returned because of a defective screen. if the company just purchased 2,000 more units, about how many model a phones should they expect to be returned? 48 72 86 68

we can set up an equation to find the girls' ages. the equation is         28=0.5x-5+x. (comment if you need me to explain how i got this equation.) so, you add x and 0.5x to get 1.5x and add 5 to each side. your new equation is 33=1.5x. now divide both sides of the equation by 1.5 to get 22=x. because x is mary's age, to find jasmine's age we subtract mary's age from 28. we find that mary is 22 years old and jasmine is 6 years old.

1.m=2

2.m=-6

3.m=3

4.m=1/2

glad to