You are checking the results of a phone app that counts calories. when someone eats, it is recorded as positive calories. when someone exercises, it is recorded as negative calories. what is the number of net calories for a person with the following record? description calories bike, 30 min -270 breakfast 560 lunch 770 walk, 45 min -80 dinner 990 ping-pong, 30 min 130

1840

Step-by-step explanation:

The records of calories for a person is shown below:

Description         Calories

Bike, 30 min            -270

Breakfast                  560

Lunch                        770

Walk, 45 min             -80

Dinner                       990

Ping-pong, 30 min     130

We need to find the number of net calories for a person with the following record.

Therefore, the net calories for a person is 1840.

e.

step-by-step explanation:

because there are always 10 numbers in a phone number.

$53.50

step-by-step explanation:

you have to subtract the amount of money chuck earned ($72.50) by the cost of the gas for the mower ($11.25) and the new string for the trimmer he bought ($7.75).

72.50-11.25=61.25

and then subtract $61.25 by the second thing he bought (the new string for the trimmer)

61.25-7.75=53.5

so in total it's $53.50 (53 dollars and 50 cents)