A submarine starts out at sea level and descends vertically at a rate of 20 ½ feet per second. Write an equation and solve to find out how long it takes for the submarine to reach - 120.4 feet? Round your answer to the nearest whole number.

What is the solution to the system of linear equations below? 25x-y=6 -2x+5y=-30 Select one: A. (-13, 14) B. (-5, - 8) C. no solution D. infinitely many solutions

Speedy movers charges its customers a flat fee of $300 and an additional $40 per hour. Write an algebracic rule to find the total cost charged in dollars, C, in terms of the number of hours needed for a move, h.

What's the factor expression y^2+7y+12

Pi High school ordered 40 science books. The next week, the school ordered 30 algebra books. The bill for the first order was $360 greater than the bill for the second order. The two bills together total $3960. Find the price of an algebra book?

Translate six hundred and eight thousandths into a decimal

3x-6x+5 (3x-2) + 8x answer?

The equation t=0.07c represents the tax, t, based on the cost, c, of an item. Which part all of the equation represents the constant of proportionality? (A) T (B) 0.07 (C) C (D) 7

What is the angle measure that is vertical to an 83° angle?

Can area and perimeter be measured in units squared

The windows of a downtown office building are arranged so that each floor has six fewer windows than the floor below it. If the ground floor has 52 windows, how many total windows are on the first eight floors?