Carl earned grades of 62, 78, 59, and 89 on four math tests. What is the mean of his grades?
A. 68.5
B. 70
O c. 72
D. 74
C
E. 75.5

graph b

step-by-step explanation:

one solution- graph a (clear intercepting point.)

no solution- graph b (they're parallel, there will never be a point of interception.)

infinite solutions- graph c (all points intercept.)

2,160 π

step-by-step explanation:

1) letter c.

2) 4 square root of 9

hope this

step-by-step explanation:

hi there!

the answer is: 2 and -2

step-by-step explanation:

case 1: an absolute value of positive number will still be a positive number

so absolute value of 2 is 2

case 2: an absolute value of negative number will be positive number so absolute value of -2 is 2