Oun John has taken two tests with scores of 75 and 60. To
get an 80 average, what must his grade be on the third
test?

Hi

Step-by-step explanation:

90 think

a complex number is a number that can be expressed in the form a + bi, where a and b are real numbers, and i is a solution of the equation x2 = −1. because no real number satisfies this equation, i is called an imaginary number. has no real solution, since the square of a real number cannot be negative.

i'm not entirely sure

step-by-step explanation:

if you ask home depot or lowe's they might be able to you out