(c) The perimeter of a rectangle with length 2r cm and width 5 m is 14 m.

Mary used 1/7 of a spool of ribbon to complete 4 projects. she used the same amount of ribbon on each project. how much ribbon did she use on each project?

Complete the solution of the equation. find the value of y when x equals -5. -4x - 8y = -52

Diane’s bank is offering 5% interest, compounded monthly. if diane invests $10,500 and wants $20,000 when she withdrawals, how long should she keep her money in for? round to the nearest tenth of a year.