Answer:
+9-22=-13
Step-by-step explanation:
Its 13 yrds lost
4.)6 2(6) + 4
9 2(9)+ 4
15 2(15) + 4
Answer:
?
Step-by-step explanation:
Answer:

Step-by-step explanation:
The difference between two consecutive elements is 11.

Hence 
Answer:
7.49
Step-by-step explanation:
Well first you have to find how much the bike lock cost.
8.75 x 0.2
1.75 = how much 20% of 8.75 is
8.75-1.75
7 = the cost of the bike lock with the 20% markdown
Now you have to find the sales tax.
7 x 0.07
0.49
7 + 0.49
7.49 = total cost with all the stuff
Hopefully this was helpful. There is a shorter method too tho.