Nina asked 30 of her friends what they thought about a new movie.

Is this a random sample of the students in the school?

yes

no

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Solve the equation 4 (2x - 1) + 8 = 4x + 24. Factor out the greatest common factor, then solve.

A soccer team played 32 games. if they won 25% of them, how many games did they win

What proportion is between 1.25 and 2.1 standard deviations above the mean?

Automobile motor oil is either synthetic or conventional. An experiment is to be conducted to determine whether the mileage before an oil change is needed is the same for both types of oil.

Solve the equation 2x + (7+9) = 90

A kangaroo hopped 5203 yards to the lake with her baby in her pouch. She hopped the remaining 5{,}2805,2805, comma, 280 yards without her baby in her pouch.

You role a six sided dice what is the probability of rolling 3 then 2

Find a negative angle that is co-terminal with the angle 158.3

The formula s = square root of SA/6 gives the length of the side, s, of a cube with a surface area, SA. How much longer is the side of a cube with a surface area of 480 square meters than a cube with the surface area of 270 square meters?

A salesperson at a furniture store earns a 3% commission on all sales. How much commission does the salesperson earn on a $1400 sale?