Answer: 7
Step-by-step explanation: Cross multiply, so 15 times x and 21 times 5. 21 times 5 is 105 then you divide by 15 which gives you 7.
Answer: .
Step-by-step explanation:
Answer: The longest display is 47.75 inches longer than the shortest display.
Step-by-step explanation:
The correct expressions are
-8.8
11(-2)
-6.7
The decimal form is x=1.2 and the mixed number is x= 1 1/5