The phone case you want to buy is markdown 30%, and you have a 20% off coupon. you pay $42.00. Can this equation be used to find the original price of the phone case? if so, what is the original price of the item? explain.

(0.7c)=42

An an average person has 6×10 by the power of two as many red blood cells as white blood cells a small sample of the blood has 7×10 by the power of three white blood cells about how many red blood cells are in the sample

Abiologist is recording the loss of fish in a pond. he notes the number of fish, f, in the pond on june 1. on july 1 there were 63 fish in the pond, which is 52 fewer fish than were in the pond on june 1. which equation represents this situation? a. f – 52 = 63 b. f – 63 = 52 c. 63 – f = 52 d. f – 63 = –52

Need on this one asap im almost done with this subject