Lois and clark each ordered 3 posters that each cost x dollers. the postage for 3 posters is $5. lois wrote an expression for the total they both spent as 6x + 10. clark wrote another expression for the total, saying that it represented the same cost: 2(3x + 5). if each poster costs $25, do the two expressions give the same amount? a. yes, both expressions show the total value to be $160, as the two esspressions are equivalentb. no, lois' expression has a value of $160 and clark's expression has a value of $155c. no, the expressions are not equivalent, so the values are differentd. yes, both expressions show the total value to be $400, as the two expressions are equivalent