manda

write interval notation for the set {x|-7<x<7} choose a intervel A)[-7,7) B)(-7,7) C)(-7,7] D)[-7,7]

why is the weight of a car less than the actual weight

what is the Ka for a 0.1994M propionic acid solution if pH is 2.795? CH3CH2CO2H(aq)+H2O(l)<->CH3CH2CO2-(aq)+H3O(aq) someone please help.. I have a final in two days.

A radio broadcasts at 101.3 Megahertz. What is the wavelength of the signal in meters?

A cannonball is fired across a field. Its height above the ground after t seconds is given by -16t^2+104. How long does it take for the ball to reach its maximum height of 169 feet?

The Sweet Candy Shop buys 600 pounds of chocolate covered strawberries at $5.59 per pound. If a 10% spoilage rate is anticipated, at what price per pound should the strawberries be sold in order to achieve a 60% markup based on cost?