. Which expression is equivalent to (144k2r1432
for all positive values of k and r?

If you answer right ill give brainliest, : )

Tim open up a new saving account with a $50 deposit and plant to deposit $20 per week into the same account.write an expression to represent the total amount in his savings account.

Present age of man is 45 years, 5 years back his age was 4 times age of his son what is present age of his son?