Joshua bought Vans for $69.76 including tax. The Vans had a sticker price of $64. What percent sales tax did he pay?

Which shows the correct solution of the equation 1/2a+2/3b=50, when b=30?

The test scores of 32 students are listed below. construct a boxplot for the data set and include the values of the 5-number summary. 32 37 41 44 46 48 53 55 57 57 59 63 65 66 68 69 70 71 74 74 75 77 78 79 81 82 83 86 89 92 95 99

Abacteria population is tripling every hour. by what factor does the population change in 1/2 hour? select all that apply