Use gauss's approach to find the follwoing sums (do not use formulas).
1+2+3+4++999
1+3+5+7++997
the sum of sequance a
the sum of sequance b

Which polynomial function has x intercepts -1, 0, and 2 and passes through the point (1, -6)

Which formula finds the probability that a point on the grid below will be in the blue area? p(blue) = total number of squares number of blue squares number of blue squares p(blue) = total number of squares number of blue squares p(blue) = number of white squares

Kelly is a salesperson at a shoe store, where she must sell a pre-set number of pairs of shoes each month. at the end of each work day the number of pairs of shoes that she has left to sell that month is given by the equation s=300-15x , where s is the number of pair of shoes kelly still needs to sell and x is the number of days she has worked that month. what is the meaning of the number 300 in this equation