Q:

This has 3 questions pls help will give brainliest!!! 1. Select from the drop-down menu to correctly identify the property shown: (-3.4+(-9.2))+(-5.6)=-(3.4+9.2)+-(5.6) Associative property , Communative property , Opposite of a sum property 2. The sale price of an item is 0.75 the original price of the item, x. Which statement explains why both 3/4x and 0.75x can find the sale price of the item? A. Multiplying by 4/3 Is the same as multiplying by 0.8 B. The fraction 3/4 Is the same as the decimal 0.w5 therefore, 3/5 can be written as 0.25x C. Multiplying by 3/4 Is the same as multiplying by 75% D. The expressions are not equivalent. 3. Caleb practices piano 20 minutes per day, and he practices guitar 30 minutes per day. Which expression represents the never of Caleb spends practicing instrument after d days A. 20+d+30+d B. 20d+30d C. 20 (30+d) D. d (20+30)

Accepted Solution

A:
(-3.4+(-9.2))+(-5.6)=-(3.4+9.2)+-(5.6) 
Associative property

2. The sale price of an item is 0.75 the original price of the item, x. Which statement explains why both 3/4x and 0.75x can find the sale price of the item? 
C. Multiplying by 3/4 Is the same as multiplying by 75%

3. Caleb practices piano 20 minutes per day, and he practices guitar 30 minutes per day. Which expression represents the never of Caleb spends practicing instrument after d days 
B. 20d+30d