Ms. peterson wrote the expression below on the chalkboard for her class. she asked the students to write an equivalent expression using no more than one set of parentheses.
4(3x + 5y + 2z) + 3(x-z)

a. tom wrote 12x + 20y + 8z
b. jenna wrote 5(3x + 4y + z)
c. chris wrote 15x + 20y - 5z

To complete your spring schedule, you must add calculus and physics. at 9: 30, there are three calculus sections and two physics sections; while at 11: 30, there are two calculus sections and three physics sections. how many ways can you complete your schedule if your only open periods are 9: 30 and 11: 30?

Which situation can be modeled by the inequality 5 + 10w ≥ 45? a. you start with $5 and save $10 a week until you have at least $45. b.you start with 5 baseball cards and purchase 10 cards every week until you have at most 45 cards. c.you start with 5 water bottles and purchases cases of 10 water bottles each until you have a total of 45 water bottles. d.you spend $5 plus $10 per week until you have less than $45.

Which graph represents the equation y =4x