A: which expression shows how many ways 13 different beads can be arranged on a necklace with no clasp? b: evaluate the expression you chose in part a. select one answer choice for part a, and select one answer choice for part b. a: 13! a: (13−1)! b: 8.72×1010 b: 2.4×108 b: 4.79×108 b: 6.23×109 a: (13−1)! 2 a: (13+1)!

i know the answer is 3

step-by-step explanation:

answer: give more info

step-by-step explanation:

1.true 2.false? ? i think. .

step-by-step explanation:

the inequality is:

250c+180g≥950

step-by-step explanation:

let c denotes the number of days in a week   miyoko worked as a cryptographer.

and g denotes the number of days in a week she works as a geologist.

now we are given that she earns $250 for every day she works as a cryptographer,and earns $180 for every day she works as a geologist.

now miyoko's goal is to earn more than $950 this week.

hence, the inequality could be represented as:

250c+180g≥950