Which is the equation of a line that has a slope of 1/2 and passes through point (2, -3)? HELP

Ametal rod is 2/5 meters long. it will be cut into pieces that are each 1/30 meters long. how many pieces will be made from the rod?

Aculture started with 2,000 bacteria. after 8 hours, it grew to 2,400 bacteria. predict how many bacteria will be present after 19 hours . round your answer to the nearest whole number. p=ae^kt

Solve 4 ln x=2ln25 a) x=5 b) x=25 c) x=625