Select the proper placement for parentheses to speed up the addition for the expression 2 + 9 + 8 + 1 a. (1 + 2) + (9 + 8) b. (8 + 9) + (2 + 1) c. (9 + 2) + (8 + 1) d. (8 + 2) + (9 + 1)

Data are collected to see how many ice-cream cones are sold at a ballpark in a week. day 1 is sunday and day 7 is the following saturday. use the data from the table to create a scatter plot.

Arecipe uses 2 cups of sugar to make 32 brownies. how many cups of sugar are needed to make 72 brownies?

Twenty points. suppose that one doll house uses the 1 inch scale, meaning that 1 inch on the doll house corresponds to 1/2 foot for life-sized objects. if the doll house is 108 inches wide, what is the width of the full-sized house that it's modeled after? in inches and feet