Astudent is trying to solve the system of two linear equations given below:

equation p: y + z = 6
equation q: 8y+7z=1

which of the following is a possible step used in eliminating the y-term?

Let w=23 . what is the value of w + 45 ?

The spring the owner of a sporting good store decreases the price of winter gloves from $10 to $8 each increases the price of swimming goggles from $8 to $10 without doing the math you think the percent decrease in the price of the gloves the same as the percent increase of the goggles explain why or why not

Lisa has three classes that each last 50 minutes. what is the total number of minutes of the three classes