Store a: $25 for 45 minutes store b: $30 for 1 hour store c: $45 for 1.5 hours store d: $80 for three 1 hour lessons julie needs to have swim lessons for her son. there are four different stores that offer swim lessons. which one is the best deal? a) store a b) store b c) store c d) store d

Store A
25/45 = 0.55

Store B
30/60 = 0.5

Store C
45/95 = 0.47

Store D
80/60 = 1.3

The answer is D

the law of definite proportions states samples of a compound will always contain the same proportion of elements by mass. in other words, a given compound will always contain the same elements in the same proportions by mass.the law of multiple proportions states when two elements combine with each other to form more than one compound, then the weights of one element that combine with a fixed weight of the other are in a ratio of small whole numbers.