Do you need to regroup 56+3 when adding to a two digit number

Rosa has decided to sell pet rocks at an art fair for 5 dollars each. She has paid 50 dollars to rent a table at the fair and it costs her 2 dollars to package each rock with a set of instructions. For what number of sales will Rosa makes profit?

Item 17 An astronomical unit (AU) is the average distance of Earth from the Sun. Use the table that shows the average distance of each planet in our solar system from the Sun. Estimate the greatest distance between Earth and Uranus.

Is 5.14 equal to 21/4

Starlight Tree Farm sells Douglas firs and Noble firs. One December they sold 139 more Douglas firs than Noble firs. The total number of trees sold was 377.

Find the value of x for the given value of y y=5x-7; y=-22

If the fdic charges bank e 2.4 cents per 100 dollars insured, how much must bank e pay to insure $4.8 million in deposits? a. $1,152 b. $115,200 c. $2,112 d. $211,200

Troy's canoe is 18 feet long. Ariel's canoe is 5/6 the length of Troy's canoe. What is the length of Ariel's canoe? Express your answer in simplest form

What equation has an a-value of 1, a b-value of - 3 and a c-value of - 5

The difference of two numbers is equal to 0.6. Their quotient is also 0.6. What are the numbers?

The diagonal of a square is 6 meters long. How long is a side of the square? What is the area of the square?