PLEASE HELP! I need both and can’t figure out the answer!

a) 11.75 * 10^6

b) 1.35 * 10^-7

Step-by-step explanation:

Here, we want to find the sum and the difference

a) That would be;

(3.48 + 8.27) * 10^6

= 11.75 * 10^6

b) That would be;

(9.58-8.23) * 10^-7 = 1.35 * 10^-7

{3 + i, 3 - i, 3, -1}

step-by-step explanation:

answer: my brother can figure it out, imma go get him so i can answer : ) edit: my brother is sleeping, sorry man

step-by-step explanation: