A unit rate compares a quantity to one unit of measure. You often see the speed at which an object is traveling in terms of its unit rate.
-5√x = -15
-5 -5
√x = 3
x = 9
The answer is D.
1st. is definitely 150.
2nd. is a i think
3rd. is 100
Mean = total score : frequency
mean x frequency = total score
so
83 = total score : 6
83 × 6 = total score
498 = total score
so the sum of the 6 test scores is 498
The radius is 22 for this , good luck my friend!!
