This scatter plot shows the relationship between the number of oil changes a car has per year had the average engine repair costs in a year for a sample population

Awater truck is filling a swimming pool. the equation that represents this relationship is y=19.75x where y is the number of gallons of water in the pool and x is the number of minutes the truck has been filling the pool.

Solve the system of equations using the substitution method. {y=−3x+7x=−2y−16 enter your answers in the boxes.

Give the domain and range. a. domain: {0, 2, 4}, range: {2, 6, 10} b. domain: {0}, range: {2} c. domain: {2, 6, 10}, range: {0, 2, 4} d. domain: {2}, range: {0}