How do I add and subtract fractions?

The diffrence of 10 and u

05. √y + 1.8√x^{2}y - 0.7 x^{-1}√x^{4} y

Find the variables 145+x=3x+45

86400 in scientific notation

A set of data has a normal distribution with a mean of 5.1 and a standard deviation of 0.9. Find the percent of data greater than 6.9. about 16 % about 34% about 13.5% about 2.5%

Which transformation causes the described change in the graph of the function y = cos x? A. The transformation results in a horizontal shrink. B. The transformation results in a vertical stretch. C. The transformation results in a horizontal stretch.

George Anderson has $30,000 of twenty-payment life. If he is thirty-six years old, what premiums will he pay?

2/3x + 1/6 = - 3x + 4

Lucy needs 3/4 of a bucket of paint for every 4 doors she paints. how much does she need for 8 doors.

Five less than the quotient of a number is three