Can someone pleaseee help! I need this answer and what x and h are of this same problem PLEASEE it’s due soonn and I’m freaking out because I don’t understand

Two customers went to a post office. first customer paid $12 for 14 and 5 envelopes the second paid 24.80 for 10 postcards and 15 envelopes. what is cost of each envelope?

Select the quadratic that has root x = 8 and x = -5

Axel follows these steps to divide 40 by 9: start with 40. 1. divide by 9 and write down the remainder. 2. write a zero after the remainder. 3. repeat steps 1 and 2 until you have a remainder of zero. examine his work, and then complete the statements below.