If james is starting to save $150 to buy a new cell phone. In January he saved $5. In February he saved twice as much as he saved in January for a total of $15. If James continues to save twice as much each month as he saved the previous month, in which month will his totals savings be enough to buy the phone?

Need a step by step explanation please!

If f(x)=2x^6+x^2+2 then what is the remainder when f(x)is divided by x+2

Asap will give brainliest and a lot of points

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.