Find the mean: 12, 8, 7, 10, 8, 8, 10

A. 63

B. 12.6

C. 9

D. 7

Find the slope of the line y=1

A survey asked 14 students + 5 other students how long they talked for the same week. this survey said the mean number of minutes all the students talked was 171 minutes.

What would be a good estimate for the number of rainy days

susan belongs to a music club. In this club students can buy a student discount card for $19.95 this car to last them to buy CDs for $3.50 each after one year Susan has spent $61.95

Jayden rotates a trapezoid around its vertical axis of symmetry to make a solid figure. What is the shape of a vertical cross section of the solid figure? A) square B) triangle C) rectangle D) trapezoid

3. "a varies directly with b". If a = 4 when b = 21, find a when b-7.

Evaluate the expression using order of operations 8-3[{4+2}+6]=?

Let n be a prime number. Which of the following statements CAN be true? A. n is a perfect square B. n is even C. n is irrational D. nis negative E n is divisible by 4

Katie practiced the flute for 45 minutes. Then, she ate a snack for 15 minutes. Next, she watched televison for 30 minutes, until 6:00 P. m. At what time did Katie start practicing the flute?

The vertex form of the equation of a parabola is y = (x+3) ^2+53. what is the standard form?