Simplify 2a + 2 / a^2 - 1

A) 2 / a - 1

B) 2a + 2 / a^2 - 1

C) - 2

D) a + 1 / a - 1

What is the product of 5,330,000 and 0.22 x 10^-10?

Raj adds 4 more layers of 4 unit how many

What's the circumference of a circle that has a radius of 24

Solve 4 log12 2 + log12 x = log12 96.

Lee has 20 cousins. if 12 of lee's cousins came to the family reunion, what fraction of his cousins attended?

The claim is that the proportion of peas with yellow pods is equal to 0.25 (or 25%). the sample statistics from one experiment include 480 480 peas with 127 127 of them having yellow pods. find the value of the test statistic.

90% of students at a university use a backpack, while the rest do not. Of all the students, 50% carry their laptops with them and 5% carry neither a backpack nor laptop. What percentage of students carry their laptops and use a backpack?

Brianna's teacher asked her which of these three expressions are equivalent to each other 9x - 3 x - 4, 12x - 4, 5x + x - 4

I am the only number between 41 and 49 that has 5 as a factor. what number am i?

Solve the proportion: A printer can print 11 color pages in 2 minutes. How many color pages can the printer print in 7 minutes?