The average price of four pairs of shoes are $50 and three of those pairs are $35, $40 and $55, then what is the price of the fourth pair of shoes?

Is the sum of 4.2 and 2 squared irrational or rational?

Matea recorded that water levels in one part of the river fell 1.05 millimeters per year for 2.48 years. Describe how you could estimate the total variation in water level.

How many thousands make 5crore

Which shapes have 2pairs of parallel sides

The goal of a benefit concert is to collect 50,000 cans of food. The food is collected at each entrance. Entrance A 15,682 cans, Entrance B, 18,940 cans, Entrance C 16,114 Entrance D 12,468

Assume that adults have IQ scores that are normally distributed with a mean of 107 and a standard deviation of 15. Find the third quartile Q3 , which is the IQ score separating the top 25% from the others.

If there are 2 blue balls and4 green balls how many balls are there

In how many ways can you make $.80 in change without using pennies or half-dollars

8.85 to the nearest tenth

1) 2x+8y=20 y=2 2x+8 (2) = 20 2) x=5 2x+y=10 2 (5) + y=10 3) 5x-2y=3 y=2x 5x-2 (2x) = 3 4) 2y+x=-15 x=3y 2y + (3x) = - 15 5) 4x+7y=19 y=x+9 4x+7 (x+9) = 19 6) y=6x+11 2y-4x+14 2 (6x+11) - 4x+14 7) 2x-8y=6 y=-7-x 2x-8 (-7-x) = 6 8) x=2y-1 3x-2y=