math
susie went to the store. she spent half her money on groceries. she spent $13 on paper supplies. she still had 1/4 of the amount she started with. how much did she start with?
physics
A 14.8 kg box is being dragged 12.5 m across the floor using a rope held at a 32 degree angle from the floor. the force being used is 146 N. Determine the work that has been done.
science
What is the difference in pitch and volme as race cars pass by the cmeras at the Indianapolis 500?
science
3. Describe each stage of the flow of information starting with DNA and ending with a trait
social studies
why did the aztec start war?
Math
anyone?
Math
A bag contains 10 marbles: 1 red, 2 blue, 3 green, and 4 yellow. I reach into the bag and pick 5 marbles at random. Determine the probability that my pick has: (a) At least 2 yellow marbles. (b) At least 2 yellow marbles and at least 1 green marble. (c) All four colors represe...
biology
• What is the overall goal of photosynthesis
economics
3.Determine if the demand for the following products is price elastic or price inelastic, and explain your answer. In your explanation, be sure to include how the necessity of a good and the availability of substitutes affect the price elasticity of demand in each of these sp...
Calculus
Let F(x) = square root of X and [a,b]. Find all numbers c in (a,b) such that f'(c) = f(b)-f(a)/b-a
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