How to I put 87*10 into scientific notation

What is the square root of 192

In the figure, 'DeltaABC' is congruent to 'DeltaADC'. If the square ABCD is dilated by a factor of 2 to form A'B'C'D', what is the ratio of the area of A'B'C'D' to the area of ABCD? 2:1 3:1 4:1 5:1

Give that (x+2) us a factor is 2x^2+kx-10, which of the following is the value of k? A - - 3 B - 3 C - 1 D - - 1

Total sales of the Desert Markets were $10,150,000 two years ago and $1 4,250,000 last year. If the same trend continues, what are sales likely to be this year to the nearest thousand dollars? (Hint : First find the percent increase.)

Graph this inequality y>5

Shane bought lunch for $5.38 and a shirt for $15.95. He then used the rest of his money to buy a book. He spent a total of $38.12. How much money did Shane spend on the book?

If j have 24,000 dollars and i invest in 15% of my moneg what would be my avarege money left

What is the greatest whole number that is less than (5/2) * 3 * / (3/4) * 2

I'm thinking of a number. When you triple my number and subtract 8 you get 7. What is my number?

Is 100 a solution because it is much greater than 35. True or false