Amobile phone carrier charges an extra fee if a customer uses more than 500 minutes each month. tom has already used 230 minutes this month. which inequality can be used to determine how many more minutes tom can use this month without going over the 500-minute limit?

The circumference of a circle is 5 pi cm. what is the area of the circle?

Aroulette wheel has 38 slots in which the ball can land. two of the slots are green, 18 are red, and 18 are black. the ball is equally likely to land in any slot. the roulette wheel is going to be spun twice, and the outcomes of the two spins are independent.the probability that it lands one time on red and another time on black in any order is(a) 0.5 (b) 0.25 (c) 0.4488 (d) 0.2244

How do i i solve this equation? -18 = x/3 + 3