How many terms are in the geometric series 2.1 + 10.5 + … + 820,312.5? a) 3
b) 7
c) 9
d) 180

Write an algebraic expression to match each statement a. four less than 8 times a number b. twice the difference of a number and six c. nine from a number squared

Rena is building a 1: 180 scale model of a real castle. her model has a rectangular base that is 3 feet wide and 4 feet long what is the area of the base of the actual castle in square feet

What is the best way to answer questions with a x expression in the question. for example 3x + 10x=?