Which number has a 3 with a value that is 100 times greater than the value of the 3 in 20.342​

Pelle's sister is three years older than pelle the father is 5 times as old as pelle the mother was 28 when the sister was born altogether they are 98 years old how old is pelle?

Factorize: x^2+8x+10 i just solved it but i don't know if the process is correct

Sara needs to take a taxi to get to the movies the taxi charges $4.00 for the first mile and then $2.75 for each mile after that if the total charge is $20.50 then how far was sara’s taxi ride to the movie