10! /
4! 2! 2!

divide using scientific calculator
npr
c(n, r)= n/r! (n! r! )

7560

Step-by-step explanation:

You can cancel out the 4! from the 10! leaving you with 5x6x7x8x9x10

Then you can cancel out 2 from 6 and the other 2 from 8

multiply the rest

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