The ratio of blue to red marbles to red marbles in a bag is 11:9. If there are 99 blue marbles in a bag, how many red marbles are there?

Factor the polynomial. -4y²+3xy-12y+9x

Officer brimberry wrote 24 tickets for traffic violations last week, but only 15 tickets this week. What is the percent decrease?

What's 412 divided by 84

A charity organization is holding a benefit event. It receives $28,000 in donations and $225 for each ticket sold for the event. What equation models the total amount earned from the event as a function of the number of tickets sold?

Kayla takes 3 quizzes each week. How many weeks of school will Kayla have to attend his quarter before she will have taken a total of 9 quizzes

Yvonne is using a coordinate grid for the first time she wants to find out the location of the ordered pair (3,7) on the grid. Starting at the origin which movement should Yvonne do first

How to know if the number is a perfect square

Andy claims that his bird can do single-digit multiplication. He shows the bird 12 cards with simple multiplication problems that are either correct or incorrect. The bird correctly identifies the correctness of the card 9 times out of 12.

Eight and 1/6 divided by 2 and 1/4

A total of 488 tickets were sold for the school play. They were either adult tickets or student tickets. The number of student tickets sold was three times the number of adult tickets sold. How many adult tickets were sold?