Idon't understand how you find the value of expressions. ex..
5•[7+7÷(6+1)]+4•12

Ihonestly don’t understand this at all

When you arrive at the lake, your friend realises he hasn’t got any swimming trunks. you need to ride to a sports shop. the sports shop is 8350 metres away. how many metres is it to cycle there and back?

Are triangles the congruent? write the congruency statement.what is the congruency that proves they are congruent? what is the perimeter of ∆pqr?