V = 4 + at, solve for a.

Janie has $3. she earns $1.20 for each chore she does and can do fractions of chores. she wants to earn enough money to buy a cd for $13.50. write an inequality to determine the number of chores, c, janie could do to have enough money to buy the cd.

What dimensions can créate more than one triangle ?

Can someone me with #s 8, 9, and 11. with just one of the three also works. prove using only trig identities.