Robert earned $37.38 on monday, $20.46 on tuesday, and $49.84 on wednesday. he calculated that he earned $87.22 for the three days. estimate the amount robert earned. is his calculation reasonable?

10 cm

step-by-step explanation:

if the polygon is a rectangle, then the perimeter is x+x+y+y. using the values that you gave, the perimeter is 3+3+2+2=10cm.

$450

step-by-step explanation:

first, you have to multiply 150x2=300

next, you have to add 150+300= 450