Can someone please help me with this question for hw

Part a : solve - vp + 40 < 65 for v . part b : solve 7w - 3r = 15 for r show your work!

You eat $0.85 for every cup of hot chocolate you sell. how many cups do you need to sell to earn $55.25

Select the correct answer. employee earnings per month($) 1 1,200 2 2,600 3 1,800 4 1,450 5 3,500 6 2,800 7 12,500 8 3,200 which measure of spread is best for the data in the table? a. range b. quartiles c. interquartile range d. mean absolute deviation