Billie needs to have her refrigerator repaired. She contacts two appliance companies and is given the rates shown in the table. Acme repair- Service call charge: 49 Charge per hour: 22.50
Ace repair- Service call charge: 0 Charge per hour: 34.75

Write an inequality that can be used to find the number of hours, n, for which Ace's total charge is less than or the same as Acme's total charge. Solve the inequality.

I'LL MARK BRAINLIEST SHOW STEPS TOO PLZ 35 POINTS

Write the sentence as an equation. z plus 372 is equal to 160

Asmall (but heavy) particle placed in a glass of water will follow a zigzag motion because the particle will bounce off of the water molecules it meets. this is called brownian motion. a physicist simulates this on a computer, by varying the distance a particle can travel (called the mean free length), on average, before it collides with a water molecule and assigning the change in motion to be one of 8 directions, each with a similar probability. by running the simulated particle (with the same mean free length) many times she determines that it should take 15 seconds, on average, for the particle to fall to the bottom, with a standard deviation of 1.5 seconds. next she lets a real particle fall through a glass of water and finds that it took 18 seconds. what does she conclude, and why?

What is sin 7x/4 ? i need on this urgent trig