An account earns simple interest. Find the annual interest rate. I= $225

P= $1500

t= 5 years

The annual interest rate is
%.

What value is equivalent to 5 + [5 × (4 + 2)]? a) 35 b) 45 c) 60 d) 110

The equation x2 – 1x – 90 = 0 has solutions {a, b}. what is a + b?

Which of the expressions (on the photo document i inserted) together represent all solutions to the following equation? 8cos(12x)+4=-4 *the answer should be in degrees.* > i would like for someone to explain the process to find the solutions for this.