What I'd the square root of 81

Do the equation 5y-2x=18 and 6x=-4y-10 form a system of linear equations?

Simplify x+2/x^2-6x-16 divided by 1/9x a. 10x/x+4 b. x+4 c. 10x^2 (x+2) / x+6 d. 9x/x-8

Ax+b=c solve for b A) b = - ax+c B) b = ax-c C) b = - ax-c D) b = ax+c

Ralph began work at 7 p. m. By 10 p. m ralph packed 18 boxes. At the same Ralph began work at 7 p. m. By 10 p. m ralph packed 18 boxes. At the same rate, how many boxes will he pack by 12 midnight, how many boxes will he pack by 12 midnight

What number should be added to - 3 to get a sum of 7?

A company charges 12$ per each 4 feet of fencing how much would It cost for a fence 20 yards

If A ⊂ B, then A ∩ B = ∅. True or False

Marcella divided 40.8 gallons of paint among 8 containers. how much paint is in each containers

A large pizza is ever ties have a 14 inch diameter if a customer orders two large pizzas how many square inches of pizza will he receive

Which ratio best defines theoretical probability? Number of possible outcomes: Number of favorable outcomes Number of favorable outcomes: Number of possible outcomes Number of nonfavorable outcomes: Number of possible outcomes Number of possible