Hank is painting his grandfather's fence. he painted 40 linear feet in 85 minutes. he still has 360 linear feet to paint. his cousins, sam and alex, come to . sam paints twice as fast as hank, and alex paints half as fast as hank. find the constant of proportionality for the fence painting rate of hank, sam, and alex combined. (round to nearest tenth)

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

What is the expression in factored form? -20x^2 - 12x a. 4x(5x+3) b. -4x(5x-3) c. -4(5x+3) d. -4x(5x+3)

What is the absolute value of the complex number -4-sqrt2i