Respuesta :
a)(you have first to find the area of the garden
b)(first you multiply 1x7=7 then multiply 5x3=15then multiply again 1x3=3 with that you have to multiply 3x7=21 then multiply 21x15=315
b)(first you multiply 1x7=7 then multiply 5x3=15then multiply again 1x3=3 with that you have to multiply 3x7=21 then multiply 21x15=315