Evaluate 12.3s + 11.7t when s= 7 and t= 8

g

step-by-step explanation:

70

step-by-step explanation:

2*5=10

4*15=60

60+10=

70

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