Table

Betty's Bakery

$\backslash$table$[[\backslash$table$[[$Quantity$],[$of$],[$cakes$]],\backslash$table$[[$Fixed$],[$Cost$]],\backslash$table$[[$Variable$],[$Cost$]],\backslash$table$[[$Total$],[$Cost$]],\backslash$table$[[$Average$],[$Fixed$],[$Cost$]],\backslash$table$[[$Average$],[$Variable$],[$Cost$]],\backslash$table$[[$Average$],[$Total$],[$Cost$]],\backslash$table$[[$Marginal$],[$Cost$]]],[1,,$$$13,$$$38,,,,],[2,,$$$28,,,,,],[3,,$$$64,,,,,],[5,,,$$$110,,,,],[7,,$$$108,,,,,],[8,,,$$$133,,,,]]$

What is the total cost of producing $7$ cakes at Betty's Bakery?

$$158$

$$153$

$$140$

$$150$