Solve each linear equation by subsitution or elimination

4x-y=-1

2x+y=7

Now find the answer and enter it here. 10 - 5 2/3

The number of significant figures in 0.01500 is

Solve the equation 6x to the 3rd power = - 1297 then round answer to two decimal places when appropriate

Marry had 22 3/4 grams of salt. She used 7 1/4 grams to make spinach omelets and 4 7/8 grams to make mushroom omelets. About how much salt does Marry have left? Choose the best estimate.

What times what equals 52

32 plus 20 using the distributive property

Simplify the expression 4 (3y-2)

Maya dropped her keys

The distribution of the number of hours of sleep people get per night is unimodal and symmetric with a mean of 6 hours and a standard deviation of 1.5. Using the Empirical Rule, approximately what percentage of people sleep between 6 and 7.

1.08928571429 simplified