Madeline bought 30 hotdogs and burgers altogether. 2/5 of the food bought were burgers. how many hotdogs did she buy? !

Marla bought a book for $12.95, a binder for $3.49, and a backpack for $44.99. the sales tax rate is 6%. find the amount of tax and the total she paid for these items

Ijust need to see how to do this. so you don’t have to answer all of them just a step by step explanation of one.

Create a data set with 8 points in it that has a mean of approximately 10 and a standard deviation of approximately 1.