How many friday the 13ths are there in a year?

In the equation x^2 + 10x + 24 = (x + a) (x + b), b is an integer. Find algebraically all possible values of b.

Multiple choice which value of x makes the equation 4x - 12=3x - 9 true?

How much does Andrea's dadweigh

Cali measures her textbook and finds that it is 8 inches wide she wants to know how many centimeters wide her textbook is the formula to convert inches to centimeters is 2.54i=c where i is the length in inches and c is the length in centimeters.

The radius of the larger circle is 10 cm. The radius of the smaller circle is 5 cm. What is the approximate area of the shaded region? Large shaded circle containing a smaller white circle inside the larger circle. 70.7 square centimeters 86.

A forest ranger in a 120ft observation tower sees a fire. The angle of depression to the fire is 10 What is the horizontal distance between the tower and the fire

Write in scientific notation 0.0042 A. 42x10^-2 B. 4.2x10^-4 C. 4.2x10^-3 D ...42x10^-4

Use factoring to solve this x^2-4x-12=0

The amazon rainforest covered 6.42 million square kilometers in 1994. In 2014, it covered 50/59 as much. Which is closest to the area of the amazon forest in 2014? A. 6.4 million km2 B. 5.4 million km2 C. 4.4 million km2 D. 3.4 million km2 E. 2.

In june 2005, Peter mailed a package from his local post office in Fayetteville North Carolina to a friend in Radford, virginia for $2.07. the first class rate at the time was $0.23 per ounce.