Can you help me with this problem is hard please

Divide. –4.2 ÷ 6 = a –0.7 b 0.7 c –7 d 7 me

This circle is centered at the origin, and the length of its radius is 6. what is the circle's equation? a. x^2+y^2=36 b x^2+y^2=6 c x+y=36 d x^6+y^6=1

When steve woke up. his temperature was 102 degrees f. two hours later it was 3 degrees lower. what was his temperature then?