Clarence saved 19% of the money he earned. If he earned $90, how much did Clarence save? Please solve this and dont scam me i really need help

What values of x satisfy the inequality x^2-9x< 0? how is your answer shown on the graph?

It is given that the quadratic equation hx²-3x+k=0, where h and k are constants, has roots [tex] \beta \: and \: 2 \beta [/tex]express h in terms of k

Monitors manufactured by tsi electronics have life spans that have a normal distribution with a standard deviation of 1800 hours and a mean life span of 20,000 hours. if a monitor is selected at random, find the probability that the life span of the monitor will be more than 17,659 hours. round your answer to four decimal places.