The mean of 20 observations is 50. If the observation 50 is replaced by 140, what will be the resulting mean?

54:56 Which table shows a constant of proportionality of 2 for the ratio of string instruments to percussion instruments? String 2 4 B Percussion 3 6 9 String 2.

Find the slope of the line that passes through (7, 8) and (5, 5).

Complete the square 2x^2-3x-5=0

How many times can 26 go into 208

In simplified exponential notation the expression a^2 x a^-3 x a =

How big is a teaspoon compared to a regular spoon?

Shella is making a scale model of a monument that is 215 feet tall. She uses a scale of 1 inch = 5 feet. How tall should Sella make her model?

X^2+y^2+3x=0 Find the x and y intercepts

Joan is building a sandbox in the shape of a regular pentagon. The perimeter of the pentagon is 35y4 - 65x3 inches. What is the length of one side of the sandbox? 5y - 9 inches 5y4 - 9x3 inches 7y - 13 inches 7y4 - 13x3 inches

Find the volume of the triangular prism. The base of the triangle is 4cm and the height of the triangle is 6cm. The length of the prism is 3cm