Solve the system of equations by substitution.

-5x + y = 3

7.5x - 1.5y = 3

Find the constant of variation for the relation and use it to write an equation for the statement. then solve the equation.

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

Acircle has a circumference of 7.850 units. what is its radius?