An airport parking lot charges a basic fee of $2 plus $1 per half-hour parked. What is the total charge from parking in the lot for 72 hours? a.

$144

b.

$146

c.

$74

d.

$72

Option

B $146

Step-by-step explanation:

Step one:

given data

An airport parking lot charges a basic fee of $2 plus $1 per half-hour

this means that for 30 mins the airport will charge an extra $1

hence for 1 hour they will charge $2

so, let the total charge be y and  the number of time be x

Step two:

The expression for the situation is given as

y= 2+2x

for x= 72hours

y= 2+72*2

y=2+144

y= $146

the answer is 8

step-by-step explanation:

3.14 x 8x8

because linear equations are a lot simpler than quadratics equations, and linear equations formula is a lot easier to memorize. that's why i think they're harder.