What does 40 + 60 + 0.9 + 7.8 + 40.2 + 3.9 + 0.2 + -34 + -35 + -7 + 0.4 equal

Ijust need to see how to do this. so you don’t have to answer all of them just a step by step explanation of one.

Abag of jelly beans contain 13 pink, green, 20 yellow, 10 black, 7 red, and 11 orange jelly beans. approximately what percent of the jelly beans are pink and yellow?

Calculate the average rate of change over the interval [1, 3] for the following function. f(x)=4(5)^x a. -260 b. 260 c. 240 d. -240