Aused car is on sale for 3,600 eric offered the owner of the car 4/5 of the asking price. how much was eric offer

Marco has $38.43 dollars in his checking account. his checking account is linked to his amazon music account so he can buy music. the songs he purchases cost $1.29. part 1: write an expression to describe the amount of money in his checking account in relationship to the number of songs he purchases. part 2: describe what the variable represents in this situation.

Can someone me out here number 4 plz

Which graph has figures that can undergo a similarity transformation to justify that they are similar? (obviously not the third one)