1. Reduce: 21 =

21

Reduce:

28

What is 4/5 rounding to the nearest 10

The freshman class at West High is planning an adventure park event. The park charges $300 for a group day pass with an additional charge of $30 per person to take a ropes course.

Which mixed number is greater than 3.62

Surface area of a trangular prism with height of 15 a side with 9 and side with 12

The formula to find the period of orbit of a satellite around a planet is T2 = (4π2GM) r^3 where r is the orbit's mean radius, M is the mass of the planet, and G is the universal gravitational constant.

At 12 pm there are 5 cells at 1 pm there are 10 cells at 2 pm there are 20 cells and at 3 pm there are 40 cells. how many cells will there be at 7 pm if the pattern continues?

Can the numbers 24, 32, 40 be the lengths of the three sides of a right triangle? Explain why or why not.

The members of a knitting club are buying supplies for their next meeting. For the club, they need to buy a new patterns book for $3.50. For each member, they need to buy a set of knitting needles for $3.20 and a ball of yarn for $5.40.

If we multiply every observation in a data set by 2, the mean will

3x² - 6x - 24 = 0 0 4,-2 O 7.58,-1.58 O 2.65, 3 0-30, 36