Mr kent teaches 7 classes that are 50 minutes each. he also has a 30 minute lunch break .how long does mr kent spend teaching class and at lunch ¡!

Show algebraically that f and g are inverse functions f(x)=x^2/-6; g(x)=square root of 2x+12

Ageologist had two rocks on a scale that weighed 4.6 kilograms together.rock a was 0.5 of the total weight.how much did rock a weigh?

In the figure below, ∠dec ≅ ∠dce, ∠b ≅ ∠f, and segment df is congruent to segment bd. point c is the point of intersection between segment ag and segment bd, while point e is the point of intersection between segment ag and segment df. the figure shows a polygon comprised of three triangles, abc, dec, and gfe. prove δabc ≅ δgfe.