2a is seven times bigger than b. Which is the ratio a: b?
A 14:1
B 1.14
C 7 2
D 2:7

The angle of a triangle are given as 6x,(x-3), and (3x+7). find x then find the measures of the angles

The magnitude, m, of an earthquake is defined to be m=log l/s, where i is the intensity of the earthquake (measured by the amplitude of the seismograph wave) and s is the intensity of a “standard” earthquake, which is barely detectable. what is the magnitude of an earthquake that is 1,000 times more intense than a standard earthquake? use a calculator. round your answer to the nearest tenth.

Solve 3x-18=2y and 5x-6y=14 by elimination or substitution . show all !