If △ABC∼△DEF, what is the scale factor for the dilation that maps △ABC to △DEF?

If eh = hg and hg=16, find the diameter of k

Celeste wants to have her hair cut and permed and also go to lunch. she knows she will need $50. the perm cost twice as much as her haircut and she needs $5 for lunch. how much does the perm cost?

Joe has some money in his bank account he deposits 45$ write an expression that represents the amount of money in joe's account