the molar volume of a gas increases by a factor of 2. which parameter change could have caused the shift in molar volume?

The measure of the angles supplement is 30 more than four times that of its complement. find the measure of the angle described

Jim has found that he must consume 2,300 calories a day to reach his health goals, but he doesn't want to give up his afternoon snack of pretzels. unfortunately, he tends to eat the entire bag — which amounts to 1,300 calories! what strategy should jim use to improve his habits?

How was the sat? what type of questions for math, writing and reading. did anyone get a near perfect score and if so how long did it take to study. i am very stressed and want to get at least a 1450.