This problem has one error. find the error and describe the incorrect step. then
solve the problem and show your work.
directions: simplify.
(7 + 9i)(4i – 7)
28i – 49 + 36i2 – 63
28i - 49+36(-1) – 63
28i - 49 – 36 - 63
-148 - 28i

What is the quotient of -3/8and-1/3?

Charlie tosses five coins.what is the probability that all five coins will land tails up.

Sophia wrote an equation to represent the revenue of a movie theater for one day. she let x represent the number of child tickets sold and y represents the nunver of adult tickets sold. if a child ticket cost $4, an adult ticket cost $6, and the total revenue for the daybwas $420, which equation could sophia use to represent the number of chikd and adult tickets that were sold?