9.5 because 9.5-7 is 2.5. 2.5 times 4/5 is 10/5 which is equivalent to 2. 4/5(2.5-7)=2
45 because 1set equals 3 push ups and she did ten sets so 10sets equal 30 push ups and then her coach asked her to do 15 more so 30 plus 15 equals 45 so she did 45 push ups that day!
Assuming you're rounding to the nearest ten-thousand, Smallest is 165,000and largest is 174,000
9/10(3x+12y+-6z) is the expression, simplified it's:
2.7x+10.8y-5.4z
Hope this helped!