Lily likes to collect records. Last year she had 10 records in her collection. Now she has 12 records. What is the percent increase of her collection?

When solving systems of we have at least two unknowns. A common example of a system of equations is a mixture problem. If I know that the solution I use to clean my car windows is 65% water and 35% cleaner, I have one relationship.

What numbers multiply to 6 and add up to 9

A random sample of n = 4 scores is obtained from a population with a mean of m = 80 and a standard deviation of s = 10. if the sample mean is m = 90, what is the z-score for the sample mean

For 3x2 - 4x + 1, match the following

Factor 10x - 25 to write an equivalent expression

Solve the equation 1.2m=0.6

Describe how to simplify the expression 3^-6/3^-4

Which equation is equivalent to log5x3 - logx2 = 2?

On a cold day in november, the recorded low temperature was - 10 degrees Celsius (°C) in Pennsylvania. On the same day, the recorded low temperature was 0°C in Michigan, - 20°C in Minnesota, and 16°C in Florida.

If each month in reno has 0.19 of rainfall as in August what would the total amount of rainfall be after 12 months