16 POINTS HELP MEE AND I WILL GIVE BRAINLIEST ;)) Create two equivalent rates to 65 km/h with units for distance and time that are not kilometres and hours. At least one should be a unit rate.

John used linear combination to solve the system of equations shown. he did so by multiplying the first equation by -3 and the second equation by another number to eliminate the x-terms. what number did jonas multiply the second equation by? 4x-6y=23x+5y=11

Simplify the following expression 48^1/2

Acylinder with a radius of 1 cm and a height of 21 cm has the same volume as a cone with a height of 7 cm. what is the radius of the cone? a) 3 cm b) 5 cm c) 7 cm d) 9 cm