18pts: who ever gets this and solves it step by step will be called the brainliest and get 18 pts.

1. 108 as 36% of what number? write and solve a proportion to solve the problem. (step by step)

2. 72 is what percent of 480? write and solve a proportion to solve the problem. (step by step)

3. explain how mental math can be used to estimate 15% tip on a tax ride that costs $23.25

Need asap i will give brainliest and 98 points classify each pair of numbered angles corresponding, alternate interior, alternate exterior or none o these

What is the following sum in simplest form? square root 8 + 3 square root 2 + square root 32

Walgreens sells both kleenex and nyquil. in a random sample of 5000 purchases, it was found that 1200 contained kleenex and 540 contained nyquil. these are not independent because sick people are more likely to buy both and healthy people more likely to buy neither. in looking into that, it was found that 360 purchases contained both. a. make a two-way table to display this information. fill in the table with the missing entries, and be sure your table has row and column totals. b. if we randomly select a purchase that contained kleenex, what is the probability it also contained nyquil? c. what percent of all purchases didn’t contain either product?