Answer:
your age is 10 and your brothers age is 2 the equation is
Step-by-step explanation:
a=5b=b+9
the first part is how old you are the second is how old your brother is and the third is how old your sister
1. Start at negative 7 on the y axis
2. Go UP 4 blocks and go to the right 1 block.
1. -3√10+3√15
2. -5√7+7√6
3. 11√3-7√6
4. 3√5-4√7+45
5. 4√5
He paid 80 at the start, so his starting must have been 80
80+40=120...
so either 0, or 80 because he owed nothing, or he owed the 80, then the 40 for medication
I hope this helps!
