Astudent tries out for the track team and runs a lap in 45 seconds. the coach tells her she will have to cut her time by 50% to make the team. how fast must she run a lap to make the team?

Asalesperson earns $320 per week plus 8% of her weekly sales. the expression representing her earnings is 320 + 0.08x. which of the following describes the sales necessary for the salesperson to earn at least $1000 in the one week?

Last month, a 770 g box of cereal was sold at a grocery store for $3.10. however, this month, the cereal manufacturer launched the same cereal in a 640 g box, which is being sold at $2.50. what is the percent change in the unit price?

Write an equation of the line that passes through 9,2 and is parallel to the line y=5/3x+9