Wx + 4y = s for y
multivariable equation practice

Two years ago a man was six times as old as his daughter. in 18 years he will be twice as old as his daughter. determine their present ages.

Ana earns 2.5% simple interest on $2,000 in her savings account. she does not make any deposits or withdrawals. after 3 years, how much interest will ana have earned on her savings account?

Which angle has the same measure as the dehedral angle formed by the orange face and the purple rectangle