45% of what number is 63? I need to find the whole number

Which system of equations could be used to find the number of tickets sold before the tournament, x, and the number of tickets sold at the door, y?

Find the product (3p^4) ^4 * (p^2) ^7

Complete the factorization 2x^2-x-6

A Person's chance of Winning a raffle is 1/18, if he buy's 15 tickets: a.) Determine the total number of tickets sold (4 marks). b.) What number of tickets does he need to buy, If he is to increase his chance of winning to 5/18. (4 marks).

Here is some information about a play starts at 7:30pm first act last 46 minutes interval lasts 20 minutes second act last 53 minutes at what time does the second act end

5. Andre is solving the equation 4 (x + 3) = 7. He says, "I can subtract from each side to get 4x = 1 and then divide by 4 to get x = " Kiran says, "I think you made a mistake." a. How can Kiran know for sure that Andre's solution is incorrect? b.

On three examinations, Dana received scores of 84, 89, and 78. What score does Dana need on the fourth examination to raise his average to 85?

You have a Spanish meeting every forth day and a math club meeting every tenth day. Today you have both meetings. In how many days will you have both meetings on the same day again?

5.2 turned into a fraction in simplest form.

A certain laptop is really popular and sells for $199.99. Since sales are so good, the store raises the price by 13%. What is the cost of the laptop after the markup?