A crayon balloon is made up of a cone and a cylinder. which of the following is the closest to the volume in cubic inches of the crayon balloon. A: 69.08
B: 75.40
C:138.23
D: 276.46

please answer asap and provide an explain i would also like to understand thank you!♥️

Agiven line has the equation 2x + 12y = −1. what is the equation, in slope-intercept form, of the line that is perpendicular to the given line and passes through the point (0, 9)? y = ( )x + 9

Answer asap ill give ! ’ a sample of radioactive material decays over time. the number of grams, y , of the material remaining x days after the sample is discovered is given by the equation y = 10(0.5)^x. what does the number 10 represents in the equation? a. the half-life of the radioactive material, in days b. the amount of the sample, in grams, that decays each day c. the time, in days, it will take for the samples to decay completely d. the size of the sample, in grams, at the time the material was discovered

Ade and abc are similar. which best explains why the slope of the line between points a and d is the same as the slope between points a and b?