Quick question will give the brainliest away. "Jack spent 15 hours practicing his saxophone last week. He spent 3 10 of that time doing warm-up routines. How many total hours did Jack spend on warm-up routines last week?" Please shpw your work and put the answer in fraction form. PLZ I AM BEGGING YOU>

The constant of proportionality is always the where k is the constant of proportionality. additionally, you can find the constant of proportionality by finding the ratio for any point onasap

The table shows the number of students who signed up for different after school activities. activity students cooking 9 chess 4 photography 8 robotics 11 select the true statements about the information in the table.

The figure shows triangle def and line segment bc, which is parallel to ef: triangle def has a point b on side de and point c on side df. the line bc is parallel to the line ef. part a: is triangle def similar to triangle dbc? explain using what you know about triangle similarity. part b: which line segment on triangle dbc corresponds to line segment ef? explain your answer. part c: which angle on triangle dbc corresponds to angle f? explain your answer. asap