9. write at least five numbers, in standard form, that include
all of these words or phrases when they are read.
two hundred million thousand one hundred forty
one answer is 40 200 103.

While scuba diving, rajeev dove to a depth of 12.6 feet below the surface of the water and then descended another 8.7 feet. what expression can be used to find rajeev's new position? 12.6 – 8.7 –12.6 – 8.7 –12.6 – (–8.7) 12.6 – (–8.7)

Nine more than four times a number is the same as one less than twice the number. find the number?

Can some one me with these questions