Combining like terms with negative coefficients

Marquis wrote the linear regression equation y=1.245x-3.685 to predict the cost, y, of x songs purchased. Which is the best estimate of number of songs that marquis purchased?

What is the LCD for fractions 5/7 And 1/21.?

Jose is paying for $10 meal using bills in his wallet. He has five $1 bills and four $5 bills. If he selects two bills at random, one at a time from his wallet, without replacement, what is the probability that he will choose two $5 bills to pay for

Solve for W 3/4w + 8 = 1/3w - 7

Lim x approaches infinity of (Square root of x^2 + 2) / x-1 ... ?

What is 7/27 simplified?

The classroom has 4 desks in each row. There are 5 rows. How many desks are there in the classroom

How many different four digit numbers can you make with these?

Enter the sentence as an equation "three increased by twice a number is at least - 7"

How many cups of walnuts are needed to make 3.75 batches of muffins? One batch of walnut muffins uses 1.33