The amount bryce earns babysitting in a month is represented by the equation a=10.5h. in the equation, a represents the total amount bryce earns. the number of hours he babysits is represented by h. what is the constant of proportionality (unit rate) of a to h? a. 10.50/hr b.10.00/hr c.9.50/hr d.5.10/hr

Aaron invested a total of $4,100, some in an account earning 8% simple interest, and the rest in an account earning 5% simple interest. how much did he invest in each account if after one year he earned $211 in interest? select one: a. $200 at 8%, $3,900 at 5% b. $3,200 at 8%, $900 at 5% c. $900 at 8%, $3,200 at 5% d. $3,900 at 8%, $200 at 5%