Renting roller blades costs a flate fee of $5 plus an additional $2.50 per hour. Write a linear equation that models this.

25 ! the line of best fit is h = 5a + 86. predict the height at age 16. show your work.

Weekly wages at a certain factory are normally distributed with a mean of $400 and a standard deviation of $50. find the probability that a worker selected at random makes between $450 and $500

The multiplicative property of equality states that for real numbers a, b, c, and d, if a = b and c = d, then ac = bd. true false