Simplify: 3r+n²-r+5-2n+2

Which answers are examples of the Law of Syllogism? Select each correct answer. If two numbers are even then their sum is even. Ten and 12 are even numbers. The sum of 10 and 12 is even.

How do you solve the proportion 15/18=y/30

A line with a slope of 3 passes through (2,5). Which choice is an equation of this line?

To use your debit card at a pay-at-the-pump system, you have to enter a four-digit personal identification number (PIN). How many different possible PINs can be formed on the 10-digit keypad? (Repetition is not allowed.)

Christina opened a savings account and deposited $200 as principal. the account earns 6% interest, compounded annually. What is the balance after 6 years?

Solve this inequality: 3 (x + 6) - 2 (x + 2) > (or equal to) 10

Is 4/5 greater than 1/3

Martha always tries to exercise at least 30 minutes a day. Write an inequality to represent the number of minutes Martha exercises each day.

A swimming pool has perimeter of 72 feet. The short sides measure 16 feet. What is the length of the longer sides of the pool

At the beginning of an environmental study, a forest covered an area of 1500km2. since then, this area has decreased by 7.1% each year. let t be the number of years since the start of the study. let y be the area that the forest covers in km2.