Leo is 13 years old his sister lsabel is n years younger then leo which expression could be used to find lasabel age in years:
a 13+n
c n-13
b 13-n
d n+ 13

The perimeter of a rectangular lot of land is 436 ft. this includes an easement of x feet of uniform width inside the lot on which no building can be done. if the buildable area is 122 ft by 60 ft, determine the width of the easement. select one: a. 9 feet b. 18 feet c. 4.5 feet d. 7 feet