Who is correct? explain your reasoning.

alejandra: 2a2b(−2ab3)−2 = (2a2b)(−2ab3)2
= (2a2b)(−2)2a2(b3)2
= (2a2b)22a2b6 = 8a4b7

kyle: 2a2b(−2ab3)−2=2a2b(−2)−2a(b3)−2
= 2a2b(4ab−6)
= 2a2bb64a
= ab72

Agraph of a trapezoid can have diagonals with slopes that are negative reciprocals and two pairs of adjacent sides that are congruent, true or false, and why

Mrs.sling bought a pound of green beans for $1.80. how much will mrs.tennison pay for 3 1/2 pounds of green beans?

Type the correct answer in the box. use numerals instead of words. if necessary, use / for the fraction bar.a city water tank holds 20 gallons of water. a technician empties 25% of the tank. how many more gallons of water must be removed from thetank so that it has 5 of the water that it started with: the technician must removemore gallons of water for the tank to have 5 of the water that it started with.