Answer:
false
Step-by-step explanation:
you can use whatever letters you want to represent things. x and y make sense that you would use just them for graphing, but if it is a word problem you could have like c for cost or t for time or something
Write the number then divide it
First do the equations in the parentheses
(21)+(28) the first one isn't negative anymore because a negative times a negative is a positive.
Now we just add them, 21+28=49
Do the i p t interest percentage and time the you add the percentage and interest then you multiply that by your time
