Answer:
50 muffins
Step-by-step explanation:
20 : 40%
y : 100%

y · 40 = 20 · 100
40y = 2000
40y ÷ 40 = 2000 ÷ 40
y = 50
Each of the toppings cost 2$
Answer:
Commutative Property of Addition
Step-by-step explanation:
If you are adding six and four together, the commutative property of addition says that you will get the same answer whether you are adding 6 + 4 or 4 + 6.
The word "commutative" comes from "commute" or "move around", so the Commutative Property is the one that refers to moving numbers around. For addition, the rule is "a + b = b + a"; in numbers, this means 6 + 4 = 4 + 6.
Answer:
D. the sale of beer and ice cream may both be affected by another variable such as the outside temperature.
Step-by-step explanation:
A. There is no evidence to indicate that the positive correlation observed is an error.
B. Even though there is a positive correlation between beer and ice cream sales, there is no evident cause and consequence relationship.
C. The relationship isn't necessarily linear.
D. It is plausible to assume that the sales of beer and ice cream are both affected by another variable like temperature. Both of the products are usually consumed cold and should see an increase in sales during warmer seasons and a decrease in sales during colder seasons.