Answer: 20
Step-by-step explanation:
4+4 5+5 6+6 7+7 8+8
4+5 5+6 6+7 7+8 8+9
4+6 5+7 6+8 7+9
4+7 5+8 6+9
4+8 5+9
4+9
Answer:
I am pretty sure the answer is 11 minutes and the cost was $2.09
Ihope this helps you:)
![-20 \leq 3x+1 \leq 10\\ \Rightarrow\ -21 \leq 3x \leq 9\\ \Rightarrow\ -7 \leq x \leq 3\\ Sol=[-7\ 3]\ if\ x\ is\ a\ real. ](https://tex.z-dn.net/?f=-20%20%5Cleq%203x%2B1%20%5Cleq%2010%5C%5C%0A%5CRightarrow%5C%20-21%20%5Cleq%203x%20%5Cleq%209%5C%5C%0A%5CRightarrow%5C%20-7%20%5Cleq%20x%20%5Cleq%203%5C%5C%0A%0ASol%3D%5B-7%5C%203%5D%5C%20if%5C%20x%5C%20is%5C%20a%5C%20real.%0A)
