There are 1010 people in an office with 55 different phone lines. if all the lines begin to ring at once, how many groups of 55 people can answer these lines?

Prove that the difference of the squares of 2 consecutive numbers is always the sum of the 2 numbers

Maria received 5/7 of the 42 votes cast for class president. how many votes did she receive?

Find the volume of a cylinder of height 6" and base with circumference 16 pi". A. 96 pi cubic units B. 192 pi cubic units C. 384 pi cubic units

A cat receives 0.15 milliliter of medicine for every 2.5 pounds that it weighs. Tabby is a cat that weighs 9.75 pounds. How much medicine, rounded to the nearest hundredth of a milliliter, should Tabby receive?

Abcde is a regular pentagon abfg is a square solve for x

The sum of the digits of a two digit number is 8. if the ten digit is 4 more than the units digit what is the number

How many decimeters is there in 5 yards

Between what two multiples of 100 is 788?

Abbey purchased a house using a fixed rate mortgage. The annual interest rate is 4.2% compounded monthly for 20 years. The mortgage amount is $235,000. What is the monthly payment on the mortgage?

6.24159 rounded to the hundredths place?