How do i prove two right triangles are congruent?

(in this case i need to prove the triangles abi and aci are congruent)

10 points + brainliest for correct answer

Which shows a reasonable estimation for 124% of 42 using the distributive property?

Find the interior angle of a regular polygon which has 6 sides

The price of a visit to the dentist is \$50$50. if the dentist fills any cavities, an additional charge of \$100$100 per cavity gets added to the bill. if the dentist finds nn cavities, what will the cost of the visit be?