Find the sum of 1st 20 terms of an AP in which third term is 7and 7th term is 2more than thrice of its 3rd term

Ann is grouping 38 rocks. she can put them into groups of 10 rocks or as single rocks. how do I describe how I organized my answer

What is 78/100 as a fraction

What is a solution to the equation y equals 2x minus 5

Evaluate the expression. 7C5

Five years from now Dan's age will be three times the age of his son. Five years ago Dan was seven times as old as his son. What is son's present age?

What are the next two terms in the sequence: - 16, 8, - 4, 2

Raise a to the 9th power, then find the quotient of the result and b

Troy cut a 100 foot rope into 3 pieces. The first piece is 43 foot long. The second piece is at least 22 feet long, but no greater than 33 feet long. Which inequality represents the length (x) of the third piece?

How do you solve 3 (1+5)

How many different ways can you find of writing 1/2