How to find surface area of a regular pyramid

A train will hold 78 passengers. If it starts out empty and picks up one passenger at the first stop, 2 passengers at the second stop, 3 passengers at the third stop, and so on. After how many stops will it be full?

What is 2 (log38+logzz) - log3 (34 - 72) written as a single logarithm?

How do you round 3,915 o the nearest hundred?

What is a quadratic function with one solution

Question Solve forx. 6x + 17 = 41

40% of the students at Rockledge middle school are musicians 74% of those musicians have to read sheet music when they play their instruments.

Solve by factoring: x^4-12x^2 = 64

If x^2=64 and x is positive, what is the value of

A bicycle store costs $2400 per month to operate. The store pays an average of $50 per bike. The average selling price of each bicycle is $90. How many bicycles must the store sell each month to break even?

The music department orders 4 times as many Rock CDs as Jazz CDs. If the department orders 550. CDs, how many of CDs are rock?