Jeriel recorded the grade-level and instrument of everyone in the middle school School of Rock below.

Based on these results, express the probability that a seventh grader chosen at
random will play the drums as a fraction in simplest form

Olivia uses the work below to determine 55% of 720 which explains the error in olivia’s solution

Circle a has a diameter of 7 inches, a circumference of 21.98 inches, and an area of 38.465 square inches. the diameter of circle b is 6 inches, the circumference is 18.84 inches, and the area is 28.26 square inches. part a: using the formula for circumference, solve for the value of pi for each circle. (4 points) part b: use the formula for area and solve for the value of pi for each circle. (4 points)

Which of the following represents the factorization of the trinomial below? x^2+7x-30