A cookie recipe calls for 2 1/4 cups of flour and 1 1/2 cups of sugar. If the amount of the ingredients are increased proportionally and the amount of sugar was increased to 9 cups, how many cups of flour would be needed?

A. 6
B. 8 1/4
C. 9 3/4
D. 13 1/2

Find the x-intercept and y-intercept of the line. 3x + 5y = −15

Cameron indoor stadium at duke university is one of the most revered sites in all of college basketball, as well as in all of sports period. duke’s men’s and women’s basketball programs have attained quite a few wins in the building over the last seventy years. cameron indoor stadium is capable of seating 9,460 people. for each game, the amount of money that the duke blue devils’ athletic program brings in as revenue is a function of the number of people in attendance. if each ticket costs $45.50, find the domain and range of this function.

What is the number 321,000,000 in scientific notation? also what is the number? ?