1. Benjamin is saving money for a new laptop. He already has $50 in his account. Now he plans on
saving $25 per week. Which equation can be
used to calculate y, the total amount of money
Benjamin will have saved after x number of
weeks of saving.
(10 Points)
A. y = 25x + 50
O B. y = 50x + 25
O C. x = 25y + 50
D. x = 50y +25

Prove that the sum of two consecutive exponents of the number 5 is divisible by 30.if two consecutive exponents are 5n and 5n + 1, then their sum can be written as 30.

Ascientist has discovered an organism that produces five offspring exactly one hour after its own birth, and then goes on to live for one week without producing any additional offspring. each replicated organism also replicates at the same rate. at hour one, there is one organism. at hour two, there are five more organisms. how many total organisms are there at hour seven? 2,801 19,531 19,607 97.655

Three numbers x, y, and z are in the ratio 2: 7: 8. if 12 is subtracted from y, then three numbers form a geometric sequence (in the order x, y–12, z). find x, y, and z. there are 2 sets.