Which answer explains the type of sequence

3, 9, 15,21

answers:

geometric

neither

arthmetic

The area of a rectangle is 54x^9y^8 square yards if the length of the rectangle is 6x^3y^4 yards what expression represents the width of the rectangle in yards

Find each percent of change. Round to the nearest whole percent if necessary. State whether the percent of change is an increase or decrease. $180 to $210

75% of students in a statistics class said that they liked statistics more than algebra. if 3 of these students are randomly selected, what is the probability that all 3 students said that they liked statistics more than algebra?

Evaluate the formula V=BH/3 for B = 9 in. 2 and h = 32 in.

Which ratio is the same as 2 over 3? 9 over 12,6 over 12,10 over 12,8 over 12?

Suppose the population of a town is 2,700 and is growing 4% each year. a. Write an equation to model the population growth. b. Predict the population after 12 years.

Use a graph to determine the number of solutions of the system. $y=2x+1$ $y=2x+5$

F (x) = 1/4 x for x = - 5

4/3+6=1/4x Solve the equation

Sandy has 17 fewer hockey cards than Al. Al has 55 hockey cards. How many hockey cards does Sandy have?