You are baking and run out of an important ingredient. Rather than fire up the car, you decide to use a bicycle. The store is 1/2 mile away. Assume your car gets 30 miles to the gallon. If every driver on the planet made a similar decision once per week for a year, approximately how much gas would be saved for that year

approximately 1.213 billion gallons of fuel will be saved per year.

Step-by-step explanation:

Distance to the store = 1/2 mile

If my car gets 30 miles to one gallons, then for 1/2 mile my car will use

1/2 ÷ 30 = 1/2 x 1/30 = 1/60 gallons

Statistics puts the number of cars users on Earth to be about 1.4 billion = 1.4 x 10^9 cars

If every driver makes this decision once a week for a year, that will be 52 times a year since there are 52 week in a year.

Total gas that will be saved in one week = 1/60 x 1.4 x 10^9 = 23333333.3 gallons

In a year that will be = 23333333.3 gallons x 52 = 1.213 x 10^9 gallons

that is approximately 1.213 billion gallons of fuel saved per year

option 2 is correct.

step-by-step explanation:

we are given two inequality equation

x+y> 5 and -3x+2y< -2

first we draw the graph of both function using t-table method

equation: x+y> 5

for x=0, y=5

for x=-5, y=0

table:

x   :   0     5

y   :   5     0

test point (0,0) , 0> 5

false

equation: -3x+2y< -2

for x=0, y=-1

for x=2, y=4

table:

x   :   0     2

y   : -1       4

test point (0,0) , 0< -2

true

now we draw the graph. see the attachment for graph.

common region would be solution set.

option 2 is correct.

answer: all of the odd numbers were opened

the first person was the one that was opening all of the lockers. since one is odd, this causes all of the odd number lockers to be opened in the end.