A mine elevator was at a depth of - 120 feet. After 15 seconds, the mine elevator was at a depth of - 30 feet. Which expression shows how to find the speed of the mine elevator in feet per second?

What's 8 * 604 useing a strategy

How do you solve 5x-11=2x+22

Is 3 a solution to the equation 6x - 7 = 11?

A cylinder container with a diameter 12 cm and height is 8 cm is three fifths full of seeds. The seeds weigh 3.52 oz/cup, And 1 cup is equal to about 236.6 cm What is the approximate weight of the seeds A. 4.3 B. 8.1 C. 15.3 D. 22.4 oz

You buy a veido game for $60 and the sales tax is 8% what is the total cost for the game including the sales tax

Marc decided to buy a set of 6 leather chairs for his dining room. He has decided to spend no more than $360. He receives coupons good for $20 off each chair. Write an inequality.

4xsquared 12x 10 is less than or equal to 0 (or what multiplies to get 40 and adds to get 12)

What is the square root of negative four

What is the common denominator for 1/4 3/8?

Which of the following expressions is a polynomial? A. f (x) = 4/x-11x^2 B. 4x^3-13x^2+5x C. 5x^3+7x^4-1/2x D. - 3x^4+8x^2-2√x+1 ... ?