If (3) x+y = 81 and (81) x-y = 3 find the values of x and y.

A box has dimensions of 70 inches 101. Feet wide and 8 inches high what is the volume of the box?

Suppose x varies directly with y and inversely with z. If x=14 when y=49 and z=7, then what is x when y=18 and z=6?

Is - (-5) greater than - |-5|

Circle all prime 11 12 13 14 15 16 17 18 19 so witch ones are prime

If T (n) = 2n-7, what is the 5th term?

The last time andy went bowling he had a mean score of 158 per game. After 3 games Andy has a total score of 473 He thinks he needs to score over 160 in game 4 to get a mean score greater than 158. Is he correct? Show a check of working

8*{[ (7+4*2-[ (11-7) * 4]}

If the legs of a right triangle have lengths of 4 and 5 units what is the hypotenuse

What are the x-coordinates of the ordered pairs (1,8) and (4,3)

10 and three over 4-71 over for