Is the ordered pair (-4/7,-3/8) a solution of the equation 7a+8b=5?

Simplify 5 square root of 7 end root plus 12 square root of 6 end root minus 10 square root of 7 end root minus 5 square root of 6 . (1 point) 5 square root of 14 end root minus 7 square root of 12 5 square root of 7 end root minus 7 square root of 6 7 square root of 12 end root minus 5 square root of 14 7 square root of 6 end root minus 5 square root of 7

If a || b and e || f , what if the value of y ?

Find the commission on a $590.00 sale if the commission is 15%.