Mary brought $20 for the skating rink. she paid $5.50 admission and $3.75 to rent skates. she also purchased two bottles of water for $1.25 each and a snack for $2.75. which expression can be used to determine how much money mary has left 20 - 5.50 + 3.75 + (2) (1.25)+2.7520-(5.50+3.75+2(1.25)+2. 75)(5.50+3.75+2(1.25)+2.75)-20 how much money does mary have left? $3.50$5.50$6.50

20-(5.50+3.75+2(1.25)+2.75) = $5.50

You do the order of operations.
So 2(1.25) = 2.50.
5.50+3.75+2.50+2.75 = $14.50.
20 - 14.50 = $5.50.

In all honesty, there really is no “work” per say to show. mainly it’s just using the process of elimination. the question is asking which domain(s) would be the most appropriate for the function c(n). n is the number of observed vehicles so right away, 1, 2, and 3 can be eliminated.why? 1, 2 start in the negatives and therefore it is impossible to observe negative cars. so, #4 would be the best answer to the given problem.

The answer is -pie over 2