How many terms are in the algebraic expression 3x(2) + 4 y - 1

(01.04 mc) an ice sculpture is melting because of heat. assuming its height changes bynegative 5 over 32m every hour, what will be the change in height after 4 hours?

Add the fractions, and simply the result to lowest terms. 2/3 + 2/7= ?

The standard deviation for a set of data is 5.5. the mean is 265. what is the margin of error?