Need help with this one-

The ratio of the measures of the three angles in a triangle is 2: 9: 4. find the measures of the angels

Tabby sells clothing at a retail store, and she earns a commission of 6.25% on all items she sells. last week she sold a pair of jeans for $32.50, a skirt for $18.95, and 2 blouses for $14.95 each. what was tabby's total commission? a $4.15 b $5.08 c $81.35 d $348.60

What is the solution to this system of equations? y= 2x - 3.5 x - 2y = -14