If the formula for the perimeter of a rectangle is p=2l+2w, what is the formula for w in terms of p and l

Two cyclists 84 miles apart start riding toward each other at the same. one cycles 2 times as fast as the other. if they meet 4 hours later, what is the speed (in mi/h) of the faster cyclist?

Pepe and leo deposits money into their savings account at the end of the month the table shows the account balances. if there pattern of savings continue and neither earns interest nor withdraw any of the money , how will the balance compare after a very long time ?

Consider the first four terms of the sequence below. what is the 8th term of this sequence?