Alice likes to go to Main Event to play laser tag and climb the rock wall each Saturday. Instead of purchasing the play pass, Alice pays for
each activity separately.
• This week Alice played laser tag twice and climbed the rock wall 3 times, spending $31.
. Last week Alice played laser tag 4 times and climbed the rock wall once, spending $27.
Using the information provided, how much does main event charge, in dollars, to climb the rock wall?
A. $5
B. $7
C. $4
D. $8