Simplify 13a^2+14-17a-12a^2+12a+6a-a^2

Anewborn baby had about 26,000,000,000 cells. an adult has about 4.94 times 10 to the 13 power cells. how many times as many cells does an adult have than a newborn

Choose the correct slope of the line that passes through the points (1, -3) and (3, -5)

My math teacher told my class to "steal" a 6th grade fraction word problem from the internet, word problems? : -p requirements: only a 1 step word problem. needs to be complex.