Simplify 4z2 + z2 + 6a.

10, 15, 8, 12, 18, 17, 20 Find the mean number of movies that the students saw. If necessary, round your answer to the nearest tenth.

What is 3/4 + (-5/12)

If S is the sum of the integers from 51 to 150 and T is the sum of the integers from 151 to 250, what is the value of S-T

Lucinda bought 6 shirts that were $18 each. She also bought a pair of jeans for $35.79. What was the total amount Lucinda pald for the shirts and jeans?

Times for an ambulance to respond to a medical emergency in a certain town are normally distributed with a mean of 450 seconds and a standard deviation of 50 seconds. suppose there are 288 emergencies in that town.

Joseph says that there is 5/8 of a ham sandwich left and 1/2 of a turkey sandwich left what is not a pair of equivalent fraction for 5/8 and 1/2

Aspen added 14 to the product of 224 and 16. What is the sum?

the number 42,__2 rounded to the hundred place is 42300. what is the least possible sum of the two missing digits? justify your answer.

What were Greek tyrants like?

Is 4b²+40b+20 a perfect square