The market bought grapes for $0.87 a pound and sold them for $1.09 a pound. what is the percent for increace rounded to the nearest tenth?

Perform the required operations on the following functions given: f(x)= 3-x; g(x)= -2x find g[f(x)]

Expresa commuter train leaves downtown sation and travels at a average speed of 55 miles per hour towards the north side sation, which is 50miles away. thirty minutes later, express commuter train #7 leaves north side and travels at a average speed of 35miles per hour towards downtown sation. at the moment the two trains pass each other, how far(in miles) is train #12 from the downtown sation and how long(in minutes) has the #12 train been traveling

The ratio of the measures of the three angles in a triangle is 2: 9: 4. find the measures of the angels