How do you show six ways to add 6, 7 and 8?

How do you solving the solution of each system using elimination?

When 142 is added to a number the result is 64 more then 3 times the number. option 35 37 39 41

Organic apples are on special for $1.50 per pound. does total cost vary inversely or directly with the number of pounds purchased? find the cost of 3.4 pounds of apples. a. inversely: $5.10 b. directly; $5.10 c. inversely: $2.27 d. directly; $2.27