What factor makes the number sentences true? 7.4= .7

3 ft

step-by-step explanation:

since the triangle is right use pythagoras' identity to solve for a

the square on the hypotenuse is equal to the sum of the squares on the other two sides, that is

a² + 8² = ( )²

a² + 64 = 73 ( subtract 64 from both sides )

a² = 9 ( take the square root of both sides )

a = = 3

lockers 1, 4, 9, 16, 25, 40, and 49 are open

i ran through it by the other answer is wrong

$15 each

step-by-step explanation:

$45/3 children= $15 each