1) A book with a tax of 10% was $19.80. What is the
price of the book before tax?

Suppose you want just guess at the answers in a 5 question multiple-choice test. each question has 3 responses and only one is correct. what is the probability of getting two questions right just guessing? 20 points 0.3275 0.2753 0.7532 none of the above

What is the first step of an indirect proof of a number that is divisible by two

Ihave trouble finding the nth term of a linear sequence