Ajar contains n nickels and d dimes. there are 28 coins in the jar, and total value of the coins is $2.20. how many nickels and dimes are in the jar?

The midpoints of the sides of the large square are joined to form a smaller square. what is the area of the smaller square

The graph and table shows the relationship between y, the number of words jean has typed for her essay and x, the number of minutes she has been typing on the computer. according to the line of best fit, about how many words will jean have typed when she completes 60 minutes of typing? 2,500 2,750 3,000 3,250

From the beginning of the day the temperature rose 15 degrees so that by 4 pm it was 87 degrees. what was the temperature at the start of the day