Answer:
5x-7
Step-by-step explanation:
5 times x (a number) subtract 7
The answer is 30. you can find the unit rate but the calculator was invented a long time ago so i used that ;)
Answer:
D). 8.
Step-by-step explanation:
Each quarter will come up heads or tails - that is 2 possibilities.
So for 3 tosses the number of outcomes is 2*2*2 = 8.