Solve using the linear combination method (show work)

4 - 9 = 1

-4 + 6 = - 2

A healthy human heart beats about 1,533,000 times in a year. A sparrow's heart beats about 241,776,000 times in a year. About how many times faster does the sparrow's heartbeat compared to the human heart? A.

You have a coupon for an additional 25% off the price of any sale item at store. the store has put a robotics kit on sale for 15% off the original price of $40. what is the price of the robotics kits after both discounts?

A right triangle has side lengths that are consecutive integers and has a perimeter of 12 ft. What are the angles of the triangle

Male and female high school students reported how many hours they worked each week in summer jobs. The data is represented in the following box plots: Two bar graphs are shown. The top one is labelld Males. Minimum at 1, Q1 at 3, median at 10.

64/7 in simplest form

A number multiplied by 2/5 is 3/20

What is 2x - x + 7 = x + 3 + 4

8x-4y=16 -5x-5y=5 Graph the both

Which correlation coefficient represents no relationship between x and y? * r = - 0.02 r = 0.41 r = - 0.78 r = 0.96

46. Merchandising If 12 items are in a dozen, 12 dozen are in a gross, and 12 gross are in a great-gross, how many items are in a great-gross?