1 Melody performed research for an engineering class in college. She took a sample of metal from
a liquid nitrogen bath and placed it in a special oven. She then measured the temperature of
the metal. The table shows the data Melody collected at different times.
Time
(min.)
4
Temperature
(°F)
-100
160
420
8
12
What is the rate of change in the temperature of Melody's metal sample?
A
B
-25 °F/min.
40 °F/min
65 °F/min.
260 °F/min
С
D

Sara bought a pair of pants that were on sale for 30 percent off of the original price. if the original price of the pants was $29, what was the sales price of the pants?

Juliana says that she can use the patterns of equivalent ratios in the multiplication table below to write an infinite number of ratios that are equivalent to 6: 10. which statement explains whether juliana is correct? she is correct because she can multiply 6 and 10 by any number to form an equivalent ratio. she is correct because 6: 10 can be written as 1: 2 and there are an infinite number of ratios for 1: 2. she is not correct because the multiplication table does not include multiples of 10. she is not correct because 6: 10 is equivalent to 3: 5 and there are only 9 ratios in the multiplication table that are equivalent to 3: 5.

Barney & noblet customers can choose to purchase a membership for $25 per year members receive 10% off all store purchases 1. how much would a member pay per year if he bought $50 worth of items each year? 2. write a slope-intercept equation that expresses how much a member pays per year using x to represent his purchases per year 3. how much would a member have to spend per year to pay off his membership fee?