please show work. Use a trigonometric function to find the value of x. (Round your answer to the nearest tenth).

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

7x^2-9x+5=0 find the discriminant and number of real solutions

Write a problem for the equation 0.5n=12.5. then solve the equation and write the answer to your problem.