Write the expression “n is 5 less than 8” as a number sentence

Jake bakes and sell apple pies. he sells each pie for $5.75 . the materials to make the pies cost $40. the boxes jake puts the pies in cost & 12.50 total. how many pies does jake need to sell to earn a profit of $50

The anwser cause i do not understand just plez

Which shows a reasonable estimation for 124% of 42 using the distributive property?