If using the method of completing the square to solve the quadratic equation x² + 8x-35 = 0, which number would have to be added to "complete the
square"?

He weights of 2-pound bags of best dog food are approximately normally distributed with a given mean  and standard deviation  according to the empirical rule, what percentage of the bags will have weights within 3 standard deviations of the mean? 47.5%68%95%99.7%

Asmall business produces and sells balls. the fixed costs are $20 and each ball costs $4.32 to produce. each ball sells for $8.32. write the equations for the total cost, c, and the revenue, r, then use the graphing method to determine how many balls must be sold to break even.

Which word in the sentence below is an interrogative pronoun? who is picking us up from school? whousisfrom