Simplify; 7a+4b+7a-3b

What's 19% of 62 show your work

3x + 6y = 6 9x - 12y = 18 elimination with multiplication

If n=50 find the value of 6n

Austin takes 1 quart of water on his hike. He drinks one third of the water going up the trail. He drinks one forth of water when he stops for lunch. how much does he have left

Find the median of the following set of data. $12.50, $13.23, $11.20, $14.50, $12.50, $13.23, $15.60, $15.75

Solve the equation x to the 2nd power=0.81 a-none of them b-x=0.9 only! c-x=0.9 or x = - 0.9 d-x = - 0.9 only!

Ally sold 5 oven toasters and 3 rice cookers for $500. If a rice cooker cost $20 less than an over toaster, find the cost of a rice cooker.

Over which interval is the graph of f (x) = -x^2+3x+8 increasing

Does 0.15>0.105 yes or no

22x - y = - 23 (equation 1) 11x + 12y = 1 (equation 2) To find the value of x, you need to substitute in equation 2. The value of x is.