4. pablo buys a mattress set for 15% of the
regular price and uses a coupon for 20%
off the reduced price. if pablo paid
$1,223.32 for the mattress set after the
incentives, what was the regular price of
the mattress set?

Two variables, x and y, vary inversely, and x=12 when y=4. what is the value of y when x=3?

Scores on the cognitive scale of the bayley-scales of infant and toddler development range from 1 to 19, with a standard deviation of 3. calculate the margin of error in estimating the true mean cognitive scale score, with 99% confidence, if there are 12 infants and toddlers in a sample.

Astudent draws two parabolas both parabolas cross the x axis at (-4,0) and (6,0) the y intercept of the first parabolas is (0,-12). the y intercept of the second parabola is (0,-24) what is the positive difference between the a values for the two functions that describe the parabolas