Me !

1) mister smith wants to improve the look of his back yard by planting small trees that cost 14 dollars each and flowering plants that cost 9 dollars each. he is not sure how many of each item he can buy, but he knows he wants to buy no more than 20 items and spend less than a total of 250 dollars on the project. choose the statement below that is incorrect and should not be used to solve the problem of how many trees (t) and plants (p) mister smith can buy for the amount of money he wants to spend.

a) 14t+9p< 250

b) t+p=250

c) t< =-p+20

d) t+p< =20

2) jose works out at a gym. he rides a stationary bike for a certain amount of minutes and walks on a treadmill for a certain amount of minutes every time he works out. the time on each machine varies, but he spends between 60 and 90 minutes at the gym every time he visits. the machines keep track of how many calories he burns per minute. he burns 9 calories per minute on the bike and 5.5 calories per minute on the treadmill. jose burns between 500 and 700 calories per visit. when graphing these lines to find the possible number of calories burned during a particular visit to the gym, which of the following linear equations would not be used to find the shaded region on the graph? let x represent the amount of time on the bike, and y represent the amount of time on the treadmill.

a) y< =90-x

b) y< =700-5.5x/9

c) y> =60-x

d) y> =500-9x/5.5

show your work

you : )