Multiply r^2+7r+10/3 by 3 r-30/r^2-5r-50

Darren earned $663.26 in net pay for working 38 hours. he paid $118.51 in federal and state income taxes, and $64.75 in fica taxes. what was darren's hourly wage? question options: $17.45 $19.16 $20.57 $22.28

Change negative exponents to positive, then solve

Given sin28.4=.4756, cos28.4=.8796, and tan28.4=.5407 find the cot of 61.6