Jenny has finished 14 out of 20 lessons enter pan book Liam has finished the same percent of lessons in his piano book his book contains 30 lessons how many lessons has Liam finished

the equation cos(35) =a/25 can be used to find the length of bc what is the length of bc? round to the nearest tenth

step-by-step explanation:

4 and 5)16.97 or 12√2

6)15.59 or 9√3

7)y = 15.59 or 9√3     x =27

8)17.80