Which expression represents the value, in dollars, of a certain number of quarters, q, and dimes, d? 0.35qd 0.35q + d 0.10q + 0.25d 0.25q + 0.10d

0.25q + 0.10d

Step-by-step explanation:

We know that each quarter values 0.25 dollars, therefore the amount in dollars of q quarters would be 0.25q.

On the other hand, each dime has a value of 0.10 dollars, therefore the amount in dollars of d dimes would be 0.10d

If we have both quarters and dimes, we would need to sum up the previous two expressions: 0.25q + 0.10d would be the value in dollars of this.

19.

step-by-step explanation:

you add the 9 in the tens column since it is a single digit and 9 plus zero is 9 so it is 19

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