Mr. Toshio lent out 11 rulers at the beginning of class, collected 4 rulers in the middle of class, and gave out 7 at the end of class. He had 18 at the end of the day. How many rulers did he start with?

Why does it not make sense to bring 22.58 students on a field trip? Explain your answer.

Does the system have one solution, no solution, or infinitly many? Use substitution to justify your answer x+5y=15 7x+2y=6

Whats 4 squred - 11x + 6 = 0

How many significant figures are in avogadro's number?

A copy machine can copy 44 papers per minute. How many papers can it copy in 5 minutes and 15 seconds

A recipe calls for 1.5 cups of flour, 0.75 cup of white sugar, and 0.5 cup of brown sugar. (a) How many total cups of ingredients are there? (b) Which of the following mixing bowls can you use to make the recipe: 2-cup, 3-cup, or 4-cup?

Write a real world problem that results in an answer 0.58.

Frank created a circle graph to show how he spent his time one day. He spent 8 hours at school, 8 hours sleeping, and the rest of the time hanging out at home. What percentages will be included in his circle graph?

Identify the equation that translates y = l n (x) five units down. y = l n (x minus 5) y = l n (x) + 5 y = l n (x + 5) y = l n (x) minus 5

In a middle school with 200 students there are 40% girls. 20% of the students wear glasses. It is also known that 10% of the boys wear glasses. 1. How many boys are in this school? 2. How many girls don't wear glasses 3.