Exercise $1$

What are the values of a and b such that the following expression is true?

a $*3+$ b $-8/2=17\mathrm{.}0$

Use the code editor to help you find the right answer.

a $=10$ and b $=1$

a $=4$ and b $="9"$

a $=9$ and b $=4$

a $=4$ and b $=9$