Ok what is 1/5 + 9/20

The atmospheric pressures at the top and the bottom of a building are read by a barometer to be 96.0 and 98.0 kPa. If the density of air is 1.0 kg/m^3, the height of the building is (a) 17 m (b) 20 m (c) 170 m (d) 204 m (e) 252 m e

1. what is the perimeter of a triangle with sides 12 inches, 9 inches, and 15 inches.

Which is the mode of this data set? 55, 78, 43, 39, 78, 61, 75, 50, 43, 78

The top of a round table is 4 feet in diameter. The top splits to allow two extra boards to be inserted. The expansion boards are 4 feet by 1 1/2 feet. What is the area of the expanded table?

Y is directly related to x, and y is 81 when x is 27. the constant of variation is

A car is traveling at 60 kilometers per hour. How many kilometers does the car cover in 7 hours?

Write the polynomial in standard form. Then name the polynomial based on its degree and number of terms. x + 7 - 4x^3

Trapezoid: b1=3 m; b2 = 4m A = 7 m2 What is the missing dimension

Describe how to transform (5 square root x^7) ^3

A triangle has 2 sides of lengths 7 and 12 what value could the length of the third side be