Solve the system of equations by substitution.

x+y=18

y=8x

What is 0.68 written as a simplified fraction

What are the whole numbers between 2 and 8

Adam bought granola bars at the store. The expression 6p+5n gives the number of bars in p boxes of plain granola bars and n boxes of granola bars with nuts. What are the terms of the expression?

Simplify the expression (7^6) ^5

A pop quiz consists of three true-false questions (with two possible answers each) and one multiple-choice question with five possible answers. The four questions are independent. How many different sets of answers are there?

Which of the following is the solution 4|x+3|≥8

Ms. Tucker travels through two intersections with traffic lights as she drives to the market. The traffic lights operate independently. The probability that both lights will be red when she reaches them is 0.22.

It's a four digit whole number It is divisible by 5 The sum of its digits is 12 The sum of it hundreds, tens, and ones digit is 8 The sum of its ten and ones digit is 1 It is divisible by 6 The difference between its ten and ones digit is 1 It is

A pair of intigers whose sum is negative two

One-third of the fish in Liam's fish tank were added today. Half of the other fish were a gift to Liam last week. the other 9 came from Liam's old fish tank.