A sphere of diameter D inches is cut by a plane which passes through its center. Find the area of the cross-section, leaving the answer in terms of π.

Ryan read 127 pages of a book on Monday and 172 pages of the same book on Tuesday. Use compatible numbers to estimate the number of pages Ryan read on Monday and Tuesday. What is the actual number of pages Ryan read?

marys school is selling tickets to a choral performance on the first day of ticket sales the school sold 6 senior tickets and 8 student tickets for a total of $102 the school took in $144 on the second day by selling 9 senior citizen tickets and 11

Abby can buy an 8 pound bag of dog food for 7.40 or a 4 pound bag of the same dog food for 5.38 which is better buy

Bethany sells roses and petunias. The expression 3r+2.5p gives the cost (in dollars) of roses (r) and petunias (p). What is the cost of 2 roses and 4 petunias?

How much less is - 200m than 450m?

Convert the measurement to the specified equiv necessary. 46,745,534 yd? to mi?

What is 1.665 as a fraction

What is the approximate value of log625?

What is 4*6? after that, how about 9*9

Find the zeros of the function: y = x (x + 2) (x+3)