Simplify this expression.

4 (9n-9)

a. - 10n+20

b. - 10n+19

c. 36n-36

d. - 8n+56

What is the surface area of a cube with edges 2 ft long?

A population of rabbits, in the absence of other factors, grows at a rate proportional to the current population: specifically, it triples every 2 years. There is another factor, however: foxes kill 2 rabbits per month.

A group of people ate dinner at a restaurant. Their bill was $64. They split the bill evenly and each person left a $2 tip. How much did each person pay?

9x + 4y when x = 4 and y=-3

The equation of a line is - 2x+5y=-20. What is the x-intercept of the line? Enter your answer in the box.

What integer represents 380 meters in depth

The museum admission is $14 and a student is 10$ how much will it cost for one class

What is the percent for. 3?

Write a formula to express the radius of a circle in temrs of the circles circumference

Graph y = - x2 - 2. Identify the vertex of the graph. Tell whether it is a minimum or maximum. (0, - 2); minimum (-2, 0); minimum (-2, 0); maximum (0, - 2); maximum