If 9% of a number equals 6, find 54% of that number

Gabriel determined that his total cost would be represented by 2.5x + 2y – 2. his sister states that the expression should be x + x + 0.5x + y + y – 2. who is correct? explain.

Given the expression (7 ? 4i) ? (2 + 6i), perform the indicated operation and write the answer in the form a + bi.

Why is it so easy to buy on impulse and overspend with a credit card? what could you do to counteract this tendency?