Joey bought a new pair of glasses at the store when they were having a 30% off sale. If the regular price of the pair of glasses was $72, how much
did Joey pay with the discount?

$50.40

Step-by-step explanation:

Find how much he paid by multiplying the original price by 0.7

72(0.7)

= 50.4

So, Joey paid $50.40 with the discount

18a

step-by-step explanation:

simply because it is. it's the highest common factor

answer:  

step-by-step explanation:

here x represents the height of the pole,

and, the height of the shadow of the pole is 12 feet.

also, the angle of elevation from the top of the pole is 40°,

therefore,

by the low of sine,

which is the required equation for finding the value of x,