Nancy and bill collect coins. Nancy has x coins. Bill has 7 coins fewer than 2 times the number of coins Nancy has. Write and simplify an expression for the total number of coins Nancy and bill have. Simplify your answer.

Quadrilateral ABCD is a square. BC = 10 What is the length of AC? A. 10 sqrt 2 B. 20 sqrt 3 C. 10 sqrt 3 D. Sqrt 100

The Suarez family paid $16.50 for 3 movie tickets. How much would they have paid for 9 tickets?

0.09X+4=4.9 I need to solve the unknown

The length of a rectangle is 3 more than twice its width. the perimeter is 48 feet

How many acute angles does a triangle have?

A sequence is defined that the first term is 4 and each term after the first term is found by adding 4/5 to the preceding term. What is the 8th term of the sequence?

A scientist is investigating a cell. The cell has a membrane thickness of 7.*10-8 m and has a surface area of 4.*10-8. The initial concentration inside the cell is n (0) = 0.6 M, and the scientist later observes that an (0.2) = 0.77 M.

13[42 - (2+4) second power]

Which is bigger 5/8 or 0.58

What is nine more than a number divided by - 4 when it is less than or equal to - 2