Acompany is inspecting several industrial refrigerators for how quickly
they lower temperatures. a sample of material is placed in each
refrigerator, with the sample's start temperature s and final temperature f
shown on the number lines. all times were recorded in the morning.
refrigerator
start
time
end
time
number line
s
refrigerator a
8: 00
8: 15
-10
-5
0
5
10
15
20
25 30
35
40 45
50 55 °c
refrigerator b
9: 00
9: 20
-10 -5
0
5
10
15
20
25 30
35 40 45
50 55 °c
s
refrigerator c
8: 30
9: 15
-10
-5
0
5
10
15
20 25 30
35
40
45
50 55 °c
refrigerator d
9: 15
9: 25
-10
-5
0
5
10
15
20 25
30
35
40
45 50 55 °c

Someone answer this asap rn for ! a discount store’s prices are 25% lower than department store prices. the function c(x) = 0.75x can be used to determine the cost c, in dollars, of an item, where x is the department store price, in dollars. if the item has not sold in one month, the discount store takes an additional 20% off the discounted price and an additional $5 off the total purchase. the function d(y) = 0.80y - 5 can be used to find d, the cost, in dollars, of an item that has not been sold for a month, where y is the discount store price, in dollars. create a function d(c(x)) that represents the final price of an item when a costumer buys an item that has been in the discount store for a month. d(c(x)) =

The fraction 7/9 is equivalent to a percent that is greater than 100%. truefalse

Which expression is rational? 6. , square root two, square root 14, square root 49