Determine the number of solutions based on the graph for the following system of equations.

2x + 5y = 7
10y = −4x + 14

Kelli swam upstream for some distance in a hour.she then swam downstream the same river for the same distance in only 6 minutes.if the river flows at 5km/hr, how fast can kelli swim in still water?

Can anyone with some algebra 1 homework? : )

Marcus needs to bike at least 80 miles this week for his training. if he has already biked 25 miles this week, then how many miles should he bike on each of the 5 remaining days this week ?