Solve for r 5(r-10)=-51

Aswim teacher sells lesson packages. the best deal has the highest ratio of lessons to total cost.swim lesson packagesnumber of lessons total cost$10$4010 1 $8015$80which package is the best deal? l lesson for $105 lessons for $4010 lessons for $8015 lessons for $80mark this and returnsave and exit

In the figure shown below, m < 40 and ab =8. which equation could be used to find x?

If you prove that ∆wxz is congruent to ∆yzx, which general statement best describes what you have proved?