In △DEF, ∠D is congruent to ∠E, as shown in the figure. The perimeter of △DEF is 90 inches.

Which is the length of DE?

Solve - pv + 40 < 65 for v solve 7w - 3r = 15 for r

Agroup of randomly selected members of the foodies food club were asked to pick their favorite type of food. the bar graph below shows the results of the survey. there are 244 members in the foodies.

60 musicians applied for a job at a music school. 14 of the musicians play both guitar and drums. what is the probability that the applicant who gets the job plays drums or guitar?