John M.

i dont get it

Which equation is perpendicular to the one in the questions  

sarah saw a television on sale for $150, but when she went back the next day the price was $200. What was the percentage change from the first day to the second day?

What I am having trouble with is that is do I have to subtract? I am not completely sure but I think so is that right?=( 

There are 30 students, 18 study Spanish, 15 study French, and 5 students study neither Spanish nor French. How many students study both Spanish and French?

sonya who is paid time and a half for hours worked excess of 40 hours had gross weekly wages of $800 for 56 hours worked. what is her regular hourly rate?  

math word problem

My mind is fryed. So, I was wondering if an expert can help. Here is my word sentence question is this: A plumber charges $50 for a service call and $60 per service hour, t. If he answers a service... more

The answer is NOT 76

Its for biology grade 12

mary left the office at 7 a.m. traveling at 40 mph. her partner joe followed 45 minutes later taking the same route and traveling at 65 mph. if he also stopped for 30 minutes to eat breakfast at... more

can i multiply -2 to both sides to cancel 2 in this equation? 0=3x/-2??

Debra’s penny bank is 7/10 full after she removes 240 pennies it is 1/2 full how many pennies can Debra’s bank hold

When ice melts, it absorbs 0.33 kJ per gram. (Assume that the heat transfer is 100 % efficient.) Express answer using two significant figures.