If a triangle with side lengths of 7,4,6 has the midpoints of all three sides connected by segments , what must be the perimeter of the triangle formed ?

Pls me this is due today and i need i will make brainliest if you me answer correctly and i will report if you try to give me a dumb answer.

Cody was 165cm tall on the first day of school this year, which was 10% taller than he was on the first day of school last year.

Alina fully simplifies this polynomial and then writes it in standard form. xy2 – 2x2y + 3y3 – 6x2y + 4xy2 if alina wrote the last term as 3y3, which must be the first term of her polynomial in standard form? xy2 5xy2 –8x2y –2x2y