What is "a number that is at least 90"

Evaluate the expression a^2+6ab for a = - 2 and b=4

Andy has 5 pots, and each pot can hold 3/8 pound of soil. How much soil does he need to fill all of the pots?

Convert the following to hours. 7 days 3hours=

Write as a monomial in standard form (3a) 2

A pile of coins, consisting of quarters and half dollars, it worth $11.75. If there are 2 more quarters than half dollars, how many of each are there?

The Federal Pell Grant Program gives grants to low-income undergraduate students. According to the National Postsecondary Student Aid Study conducted by the U. S. Department of Education in 2008, the average Pell grant award for 2007-2008 was $2,600.

What is the square root of 64? I don't understand. Will give brainliest

In a graduation program, 1 1/2 hours are set aside for speakers. If the keynote speaker is given 1/4 hour, how long will each of the remaining 5 speakers have to give their speech?

A sample of Bismuth-210 decayed to 33% of its original mass after 8 days a) Find the half-life of this element

Assuming that tide duration from low tide to high tide is 6 hours and 25 minutes, going from a high of 3.21ft and down to a low of 0.20ft what is the lapse rate per hour of the tide?