Which system of equations is equivalent to the system of equations shown?

x - 2y = 4
3x + y = 9

a) 4x + y = 13 and 2x + 4y = -8
b) 4x - y = 13 and 2x + 4y = 8
c) 4x + y = 13 and 2x - 4y = -8
d) 4x - y = 13 and 2x - 4y = 8

Our goal is to collect email addresses from 60% of customers who purchase a product." so that means if i talk to 95 customers, i need to persuade to provide an email address?

A50% increase followed by 33 1/2% decrease

James is playing his favorite game at the arcade. after playing the game 3 times, he has 8 tokens remaining. he initially had 20 tokens, and the game costs the same number of tokens each time. the number t of tokens james has is a function of g, the number of games he plays. write the function’s formula? t=