1+4=5 2+5=12 3+6=21 8+11=? puzzle answer

Which of the following are assumptions needed for simple arithmetic A. Numbers exist. B. Multiplication. C. Addition. D. All of the above. E. A and C above.

Kendra's water bottle contains 2 quarts of water she wants to add drink mix to it but the directions for the drink mix give the amount of water in fluid ounces how many fluid ounces are in a bottle

The expression 2x+13/2x+6-3x-6/2x+6 is equivalent to

At the beginning of the month, Shiloh made 69 servings of trail mix. By the end of the month, she had 49 servings of trail mix left. Which equation could be used to find x, the number of servings of trail mix that had been eaten during the month?

1/2x - 2 = 8 solve for x

In how many ways can six people line up from left to right from a group photo

If a climber climbs 0.25 miles per day how many days would it take him to climb 3.848 miles high?

What is 6 1/2 - 2 2/3 =

Olivia has 40 coins made up of quarters and dimes. Altogether they make $7.00. How many quarters does she have? How many dimes does she have?

the cost of nails varies directly with the number of pounds bought. If 4 pounds of nails cost $11.60, what is the cost of 3.5 pounds