Write a story problem that includes both integers - 8 and 12

Pepe is going to spin the following spinner 800 times. the spinner is divided into equal sections.a. exactly 160 timesb. clost to 160 times but probably not exactly 160 timesc. exactly 640 timesd. close to 640 times but not probably not exactly 640 times. me

Which expression do you get when you eliminate the negative exponents of 4a^2 b^216a^-3 b

Present age of man is 45 years, 5 years back his age was 4 times age of his son what is present age of his son?