Whats 620 divided by 10 to the third power

2men and 7 boys can do a piece of working 4 days.it is done by 4 men and 4 boys in 3 days how long would it take for 1man or one boy to do it alone

Xto the second power plus 14x plus 48. what are the factors? we are doing factoring trinomials with a=1

Divide. –4.2 ÷ 6 = a –0.7 b 0.7 c –7 d 7 me