If 1+4=5, 2+5=12, 3+6=21 then 8+11=?

Is 7 - the square root of 2 rational or irrational. Explain

How to draw quadratic graph

Mitzi has 38 coins. She divides the coins equally between herself and her 3 brothers. How many coins does each person get? Are any coins left over?

Mark only have quarters and. dimes in his car. he has 16 couns that value $2.95. how many dimes and quarters does he have in the car

What is 2.1564 rounded to the nearest cent?

An election ballot asks voters to select four city commissioners from a group of sixteen candidates. In how many ways can this be done?

A high school baseball team averaged 800 fans for each of its seven home games. What is the order of magnitude of the total attendance? A. 4 B. 3 C. 2 D. 5

Round 494 to the nearest ten

Two fair dice are tossed. a. What is the probability that the sum of the number of dots shown on the upper faces is equal to 7? To 11? b. What is the probability that you roll "doubles" that is, both dice have the same number on the upper face? c.

Least common multiple of 78 90 140