Solve each proportions: 1) 7/2 = a/5

2) 8/r = 9/7

3) 6/b = 7/5

PLEASE HELP!

Use δjkl and δmpn to determine whether don's claim is true or false. which of the following should don use to prove the triangles are similar? sss sas aas aa

You and a friend went to the movies.you spent half your money on tickets. then you spent 1/4 of the money on popcorn, $2 on candy, and $3 on a soda. if you have $1 left, hiw much money did u take to the movies?

What is the value of x in the equation 1.5x+4-3=4.5(x-2)?