Select all the expressions that correctly calculate the perimeter of the shape.
10
40+2017
80+2017
120+2017
300+10071
10+10+101+10+10+1011

Rena is building a 1: 180 scale model of a real castle. her model has a rectangular base that is 3 feet wide and 4 feet long what is the area of the base of the actual castle in square feet

When 142 is added to a number the result is 64 more times the number my options are 35 37 39 41

Can you me find the missing length. i attached an image.