A steel ornament has a mass of 0.0785 kg and changes from a temperature of 15.0∘∘C to 32.3∘∘C. How much heat energy did it gain? The specific heat of this type of steel is 470 J/kg∘∘C.​

Aright triangle has an area of 18 square inches. b: if the triangle is not an isosceles triangle, what are all the possible lengths of the legs, if the lengths are whole numbers. answer !

Write the equation in logarithmic form 8^x=64

Two cars which are 40 miles apart start moving simultaneously in the same direction with constant speeds. if the speed of the car which is behind is 56 mph and the speed of the other car is 48 mph, how many hours will it take for the car which is behind to catch up the car ahead of it?