Steve earned 100 points in the first round of the game. He earn 20 points in each of the following runs in the game. He end of the game with 400 points. Write and solve an equation to find the number of rounds Steve played.

do you mean add both of the equations together

because if you do the answer is 10x-5

step-by-step explanation:

part d

step-by-step explanation:

theresa talked her parents into getting sd cards for her phone and her brother’s phone. inserting an sd card into a phone gives it more storage. they both get 8-gigabyte sd cards. how many bits of storage come with each sd card? type your answer in both scientific and standard notation.