Joe has finished 14 of the 30 lessons in his piano book. lindsey has finished the same percent of lessons from her piano book, but her book contains 45 lessons. how many lessons has lindsey finished?

Lessons has Lindsey finished = 21

Step-by-step explanation:

It is given that,

Joe has finished 14 of the 30 lessons in his piano book. Lindsey has finished the same percent of lessons from her piano book, but her book contains 45 lessons.

To find the percentage of lessons of Joe

Percentage = (14*100)/30 = 140*3 = 46.67%

To find the lessons has Lindsey finished

Lindsey has finished the  46.67% of lessons from her piano book

46.67% of 45 = (46.67*45)/100 = 2100/100 = 21

Therefore lessons has Lindsey finished = 21

answer: c is correct, a regular pentagon

step-by-step explanation:

the true statements are:

r = set of real numbers

n = set of natural numbers, 1,2,

w = n u{0} = {0,1,}