Find the value of x

13n-6n=14

Add the prime factors of 39.

The circumference of a tennis ball is 21 cm. How many inches is the circumference?

Simplify 2 (6 (3.5+2.1))

One gallon of propane yields approximately 91,500 BTU. About how many BTUs does the spherical storage tank shown provide? Round to the nearest million BTUs. ( Hint: 1ft3 ≈ 7.48gal)

Juanita is cutting a piece of construction paper in the shape of a parallelogram. Two opposite sides of the parallelogram have lengths (5n - 6) cm and (3n - 2) cm. The third side measures (2n + 3) cm.

Find the dimensions of the rectangular corral split into 2 pens of the same size producing the greatest possible enclosed area given 300 feet of fencing. (Assume that the length is greater than or equal to the width.

What is the volume of a rectangle prism that has a length of 2cm width of 3cm and a height of 5cm

A student factors 3x2 - 12 to the following. 3 (x2 - 4) Which statement about 3 (x2 - 4) is true? A. The expression is equivalent, and it is completely factored. / B. The expression is equivalent, but it is not completely factored. / C.

What is the area of a square that has a perimeter of 40 feet? Explain your reasoning

The university gym opens at 9 am on saturday mornings. one saturday morning at 8:55 am there are 27 students outside the gym waiting for it to open. should you use the same approach from part a.