Alexa owns a total of 45 fiction and nonfiction books. if the number of fiction books is 15 more than 4 times the number of nonfiction books, how many fiction books does she own?

Which terms in the expression are like terms? 7x+-7+2/3+-7m

The number of bacteria N at a certain time t is given by N = 100et / 10, when there are 100 bacteria at time t = 0 hours. Find how many hours t it takes for the bacteria to double (that is, increase from 100 to 200 bacteria). [Use either ln (2) ≈ 0.

Finde the Polynomials 15y³ + 11y² + 7y + 1 / 5y + 2

How do you write 0.00029 in scientific notation?

two people begin traveling at the same time from opposite ends of a 20 mile trail. one person travels 3 miles per hour faster than the other. if they meet after 2 hours, what are the rates of the 2 people

A student claims that 8^3 •8^-5 is greater than 1 ...

Compute the probability of event E if the odds in favor of E are (A) StartFraction 20 Over 27 EndFraction (B) StartFraction 25 Over 18 EndFraction (C) StartFraction 19 Over 15 EndFraction (D) StartFraction 21 Over 8 EndFraction

Find the radius circumference = 12.6yd

If 3^x=5^y=75^z, show that z=xy / (x+y).

Two angle of a quadrilateral is 90 degree and 100 degree. the remaining two angles are equal. calculate the size of each remaining angle.