Determine the vertex- f( x)= x^2 +4x +3

(2,-1)
(-2, -1)
(-3, -1)
(-1, -2)

What is the pattern in the values as the exponents increase?

Afarmer sells 9.5 kilograms of apples and pears at the farmer's market. 4/5 of the weight is the apples and the rest is the pears. how many kilograms of pears did she sell at the farmers market

Weekly wages at a certain factory are normally distributed with a mean of $400 and a standard deviation of $50. find the probability that a worker selected at random makes between $450 and $500