Karen makes $5 per hour babysitting and $12 per hour teaching music lessons. One weekend, she worked a total of 18 hours an made $139. How many hours did she spend babysitting? NEED ANSWER ASAP PLS HELP

An empty bucket is placed under a faucet dripping at a constant rate of 4 milliliters per minute. with the given information, which of these statements is a reasonable conclusion? a there will be 24 milliliters of water in the bucket after 16 hour. b there will be 60 milliliters of water in the bucket after 14 hour. c there will be 160 milliliters of water in the bucket after 20 minutes. d there will be 100 milliliters of water in the bucket after 40 minutes.

To solve the system of equations below, pedro isolated the variable y in the first equation and then substituted it into the second equation. what was the resulting equation? { 5y=10x {x^2+y^2=36

Order the measurements from the least to the greatest. 2,720 ml , 24.91 l , 0.0268 kl