Which instrument allows for the most precise measurement of mass? (The measurements are shown for each device.)

Naruto is choosing between two venues that will deliver food to his house. with probability 1/3 he will choose ramen mania (r), and with probability 2/3 he will choose sushi (s). if he chooses r, 15 minutes after making the call, the remaining time it takes the food to arrive is exponentially distributed with average 10 minutes. if he orders s, 10 minutes after making the call, the time it takes the food to arrive is exponentially distributed with an average of 12 minutes. given that he has already waited 25 minutes after calling, and the food has not arrived, what is the probability that he ordered from r? i am really stuck on how to set this up, so if you could be extra clear, that would be super ! in advance

An amusement park issued a coupon to increase the number of visitors to the park each week. the function below represents the number of visitors at the amusement park x weeks after the issuance of the coupon.

1. jesus bought 3 pairs of jeans for $71.40. how much would he need to pay for 8 pairs of jeans? unit rate $ pair cost for 8 2.morgan scored 41 points in 3 games. how many points would you expect him to make in an 11 game season? unit rate points/game points in 11 games 3. andy drove 840 miles in 12 hours. how far could he drive in 3 hours? unit rate (speed) distance 4. pira drives 825 miles to california. the trip takes him 17 hours. he uses 38 gallons of gas on the trip, which costs him $125? a) find his speed b) find his gas mileage c) find the unit price he paid for gas me this is due ! explanation for each one ! ! ! ! someone