Mean
Mode
Median
Range
42
43
44
45
46
47
48

Mean- 45

Median- 45

Mode- Nil

Range- 6

Step-by-step explanation:

Mean= sum of data set/number of data set= 42+43+44+45+46+47+48/7 =45

Median= arrange in an ascending order, then pick the middle data or number= 45

Mode- the number with highest frequency, in the case of this question, all number appeared once, hence no mode.

Range= difference between the highest and lowest value in a data set= 48-42=6

7

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