Is the square root of - 13 rational or irrational or not a real number

When finding the inverse matrix the determinant can never be (fill in the blank)

A luncheon for 36 guests costs $207. what was the cost per guest?

Place value of 742,513

Describe the following sequence as arithmetic, geometric or neither. 2,4,8,12,14 ...

A sink fills with 2 liters of water every 2.5 minutes. what is the rate at which the sink is being filled?

Farmer Tom can grow potatoes, cabbages, or cauliflower on his land. However, he has decided to grow only potatoes. What is Farmer Tom doing? specializing downsizing diversifying

64x = 8 What is value of x that makes the equation true?

Which equations are aquivan to 3/4 + - 7/4 check all that apply

Battery was charged. when the charging began it was 23% full after 30 minutes of charging the battery was 89% full. how fast was the battery charged? How long did it take the battery to be funny charged?

93*10 of 6th power whole number