Use Cramer's rule to solve:
3x +5=2y
15-6y= -9x

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?

Write 17/20 as a decimal and as a percent.

Rewrite the following quadratic functions in intercept or factored form. show your work. y = 4x^2 - 19x- 5