2. At a supermarket checkout, a scanner records the prices of the foods you buy. In order to protect consumers,
the state of Michigan passed a “scanning law" that says
something similar to the following:
“If there is a discrepancy between the price marked on
the item and the price recorded by the scanner, the con-
sumer is entitled to receive 10 times the difference be-
tween those prices; this amount given must be at least
$1 and at most $5. Also, the consumer will be given the
difference between the prices in addition to the amount
calculated above."
(a) What is the lowest possible refund?

15

step-by-step explanation:

we are given the following expression and we are to solve it and find the product:

-13 × (-5)

solving the given expression in the standard order of solving a mathematical expression, beginning with the opening of brackets and then multiplying the terms and changing their signs.

-3 × -5 = 15 (answer is positive because when negative is multiplied with negative, it gives a positive answer)

step-by-step explanation :

we know that

the measurement of the outer angle is the semi-difference of the arcs which comprises

in this problem

m< xzy is the outer angle

substitute the values

the measure of angle xoy is equal to

> by central angle

substitute the value

the surface area is 124cm²

step-by-step explanation:

length: 4cm

width: 9cm

height:   2cm