60 bricklayers began a 16-day project to build a castle. after five days, five of the bricklayers quit the job. if they work the same amount each day, how many extra day(s) (beyond the original estimate of 16) will the remaining bricklayers need?

Find the multiplicative inverse of 8-12i

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

Are the corresponding angles congruent? explain why or why not.