Pamela needs to buy 12 yards of blue ribbon that costs $2.05 per yard. She also needs 6 yards of yellow ribbon for $1.85 per yard. If she gives the store cashier $40, how much change will she get back?

Ben is three times as old as samantha, who is two years older than half of michel's age. if michel is 12. how old is ben?

The brain volumes (cm cubed) of 50 brains vary from a low of 904 cm cubed to a high of 1488 cm cubed. use the range rule of thumb to estimate the standard deviation s and compare the result to the exact standard deviation of 175.5 cm cubed, assuming the estimate is accurate if it is within 15 cm cubed

What’s 8y+48 and factor each expression completely