The snack bar at your school has added sushi to its menu. The ingredients for one roll includes sushi rice, seaweed sheets, cucumbers, cream cheese, and three oz of smoked salmon. One roll can be cut in the seven servings. Write an expression for the amount of salmon needed to make s servings of sushi. How much time is needed to make 14 servings?21 servings?70 servings? 100 servings? HELP PLEASE !!

On the first of each month, shelly runs a 5k race. she keeps track of her times to track her progress. her time in minutes is recorded in the table: jan 40.55 july 35.38 feb 41.51 aug 37.48 mar 42.01 sept 40.87 apr 38.76 oct 48.32 may 36.32 nov 41.59 june 34.28 dec 42.71 determine the difference between the mean of the data, including the outlier and excluding the outlier. round to the hundredths place. 39.98 39.22 0.76 1.21

Find the roots of the polynomial function f(x) = x^3 + 2x^2 + x

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.