What times what equals 81

Determine whether the following system of equations has one solution, no solution, or an infinite number of solutions. Explain your reasoning. 2x - 4y = 10 7x - 9y = 12

Express the sum of 5762.7 and 67.2 to the correct number of significant digits. a. 5829.9 b. 5830 c. 583 101 d. 5.83 103

Given that lim x→3 f (x) = 4 lim x→3 g (x) = - 4 lim x→3 h (x) = 0, find the limits, if they exist. (if an answer does not exist, enter dne.) (a) lim x→3 [f (x) + 2g (x) ]

For this question, Determine if the equation is always, sometimes, or never true. If the equation is sometimes true, determine the numbers that make it true. The equation is: 6y + 5 = 4y + 5 and - 2 (6 - 10n) = 10 (2n - 6)

What should a person in a wheelchair or crutches use to avoid injury when going up or down a level in a building? Car Door Ramp Stairs

Which expression can be used to find the volume in cubic

During the last 15 years of his baseball career, Andrew hit the following number of home runs each season.

What are the common factors of 14,45 and 90 90?

4 over x+4 - 2 over x+1

The sides of a square garden are 8 feet long. You enlarge the garden to create a 25% increase in the length of each side. Find the nw length of the sides.