Which expression shows the sum 9 + 21 rewritten as a product of the GCF and a sum?

9 (1 + 21)

3 (3 + 7)

3 (3 + 21)

9 (1 + 3)

Jen traveled a distance of 170 miles in 2 hours and 45 minutes. Express her speed, in miles per hour, to the nearest tenth

Estimate how many stacked pennies it takes to reach the height of a two story house. To calculate your estimate, you must make assumptions

What is a event made up of two or more simple events

Explain text functions, count, countif and averageif functions in own words. Looking for some original content.

A pharmaceutical company is testing two treatments, A and B, that are used to heal wounds. They test the effectiveness of treatment A by applying it on an area of a 1 square inch wound. It heals by decreasing the area of the wound at a rate of 5.

What is 2➗2 shoe work

Elle can buy 2 quarts of milk for $3 or 1 gallon of milk for $3 which is the better deal

The school cafeteria ordered macaroni and cheese for their monthly supplies. In the past 2 months they ordered 178 and 224 boxes for $105.02 and $132.16 respectively. Both times they had too much left over so this month they decided to buy 103 boxes.

Lamont has30 books to pack in boxes. each box holds 7 books. if he fills in each box how many books are left over?

What is the value of the expression? (15 - 7) • (3 + 5) A. 12 B. 29 C. 64 D. 41