A mason wants to start building a stone pyramid the base of which has 551 blocks and the top 26th layer has only 1. If the number of blocks on each layer follow an arithmetic sequence, how many blocks should he get?

At this rate how many pages does he complete in 200 minuties

How to find the mean median and mode for (7,4) (11,11) (1,5) (7,11) (5,9) (6,11) (10,9) (4)

If you assume that a pair of rabbits produces 6 offspring and that half are male and the other half female and each pair breeds only once, how many will be produced each year for five years?

What is 13 miles to yards

A marketing company wants to know if people who like brand X soda also like brand Y potato chips. Which procedure is the most appropriate to answer the question? A. Randomly choose two groups.

The Walker family and the Goodman family are going to the cinema. The Walkers pay £22 for 2 adult tickets and 1 child ticket. The Goodmans pay £26 for 1 adult ticket and 3 child tickets. How much does a child's ticket cost?

What is 17=3x+2y in slope intercept form

Mia is taking art and calculus courses on Mondays. She is late for the art class with probability 0.5 and late for the calculus class with probability 0.4. Suppose the two events are independent.

Fill in the blank 9,15,24,39,63,102,165,_,432,699,1131

Fill in the other coordinate for line 2x-5y=11: (2)