Find 20×47 so which method you chose explain what happened to meet up

The equation x2 – 1x – 90 = 0 has solutions {a, b}. what is a + b?

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

If a is a nonzero real number then the reciprocal of a is