4x to the power of 2 + 2 - 2x to the power of 2

What is a type expression that contains a variable or variables

What is the mean of the following data values? 22,37,49,15,82

1. If 70% is £14, what is the full cost 2.4 bags of cement do 18msquared, how many msquared can be done with 7 bags 3.5x+1=3 4. find the nthe term of this sequence 7,12,17,22,27 4. if t (n) = 6n+2 what is the 3rd term

On the way home from their trip, the Sterns decide to use the odometer to keep track of the family's progress. (The odometer displays the total number of miles a vehicle has driven since it was made.

Mark took 30 minutes to finish lunch describe the turn the minute hand made

If a woman making $25an hou gets a just 10%raise how much will she now make in a 8 hour work dag

3 (a+b) = 3a+3b is an example of which algebraic property

Katie is shopping for soccer shoes on-line. Her favorite store charges shipping as 3% of the purchase price, with a minimum shipping charge of $3.00. For today's purchase of $65.

At a gas station, 50% of the customers use regular gas, 30% use mid-grade gas and 20% use premium gas. Of those customers using regular gas, only 30% fill their tanks.

Solve the linear system using the substitution method. x + 2y = 4 - x+y = - 7 How would you solve it?