The tenth through thirteenth terms of an arithmetic sequence are given by a10 = 47, a11 = 53, a12 = 59, and a13 = 65. Which formula can be used to find an? A. an = 6n - 13 B. an = 6n +37
C. an = 6n +41
D. an = 6n - 47
E. an = 6n - 7​

Graph red beads cost $1 an ounce and gold beads cost $3 an ounce. juanita wants to purchase a 12-ounce mixture of red and gold beads that she can sell for $2 an ounce. the solution of the system shows the number of beads needed for juanita to break even. x + y = 12, x + 3y = 24 how many ounces of red beads will juanita buy to break even? how many ounces of gold beads will she buy?

Ftara spends $219 a month for her car payment and she makes $3,200 a month, what percent of her monthly income is spent on her car payment?

Jayne is studying urban planning and finds that her town is decreasing in population by 3% each year. the population of her town is changing by a constant rate.true or false?