Unit price of 12 books for 87$

Luis is finding 8.9 - 3.72

In a class of 20 students, 40% are boys. 25% of the boys and 50% of the girls wear glasses. How many students wear glasses?

Each side of an equilateral triangle measures 9 cm. Find the height, h, of the triangle.

The purchase price of a camcorder is $656. What is the total price if the sales tax rate is 7.5%?

Write 0.96 as fraction in simplest form

You select a card at random from the cards that make up the word replacement without replacing the card, you choose a second card. find the probability of choosing a vowel.

jake hase a mac 11 and want to go on a shooting with 8 magazines and 25 bullets in each magazine, how many bullets are in the mac 11? and how many people can he end if he missed 90 shots because he is a mobile kid?

Trevor has $8 in savings and adds $1 each week. Aretha has $12 in savings and adds $3 each week. After how many weeks will Aretha's account have twice as much as Trevor's account?

What is the interest earned on $400 invested at the rate of 6% for one year?

Which ordered pair is a solution of the equation? A - Only (4,-1) B - Only (5,2) C - Both (4,-1) and (5,2) D - Neither