What is the difference between the product of 19 and 3.6 , and thw sun of 2.87 and 3.5

Ageologist had two rocks on a scale that weighed 4.6 kilograms together.rock a was 0.5 of the total weight.how much did rock a weigh?

Which equation is represented by the graph below?

Tanner has purchased a car with a loan. his bank now deducts the amount of the monthly payment from his account on the second of every month. which financial service has tanner’s bank offered him? a. money transfer b. automated payment c. online banking d. atm withdrawal