Does this graph represent a function? Need this ASAP

Consider circle h with a 3 centimeter radius. if the length of minor arc what is the measure of zrst?

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 ?

Kai walked one and two-thirds of a mile on saturday and four and one-sixth of a mile on sunday. how many miles did kai walk?