You make $7.25 an hour working at a restaurant and money is deducted from your earnings to pay for the food that you eat. On payday, you received a check for 20 hours
of work and $15.75 was deducted for food. How much was your paycheck?

Give the equations of two different lines that are perpendicular to the line 3x + 4y = 7.

The? half-life of a radioactive substance is 20 years. if you start with some amount of this? substance, what fraction will remain in 120 ? years

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