What is the value of 3n+1 when n=4 7 13 8 12

This figure consists of a rectangle and semicircle. what is the perimeter of this figure use 3.14 for pi 60.84m 72.84m 79.68m 98.52m

Lydia collected two sets of data one set of data shows an outlier. which set has an outlier, and which number is the outlier?

Find the area of the triangle formed by the origin and the points of intersection of parabolas y=−3x^2+20 and y=x^2−16.