Los lados de un triángulo miden 6, 8 y 12 cm. Se construye otro semejante cuyas dimensiones son 9, 12 y 18 cm. ¿Cuál es la razón de semejanza?

What is the maximum total area that 450cm of string can enclose if it is used to form perimeters of two adjoining rectangles as shown?

A) if $50000 is invested in a bank account that pays 9.3% of interest compounded on a six-monthly basis, how much money will be in the account after 3 and 12 years? b) if matusalen's father had put $2.0 in the bank when he was born and there, how long would matusalen have had to his death (969 years later) if the interest was 7% per year composed each month and weekly?

Simplify the algebraic expression 8y-2(y+4)