12a + (-7) + 12a=13 what is the value of a

What does 14.25 round to?

Which graph represents the system of equations? y=2x+1y=2x2+1

86, 88, 92, 90, 82 and 84. The mean of the data is 87. What is the mean absolute deviation?

What is the slope and y-intercept of the equation 3 (y - 2) + 6 (x + 1) - 2 = 0? A.) slope = - 2, y-intercept = 2/3 B.) slope = 2, y-intercept = 2/3 C.) slope = - 2, y-intercept = - 2/3 D.) slope = 2, y-intercept = - 2/3 E.

A 3% fee is taken out of an initial amount of $3,460, and then a $100 fee is taken after that, leaving a new amount of $ .

At a theater one section has 8 rows with 12 seats in each row in the center of the of each of the first 3 rows are 4 broken seats that cannot be used. How many seats can be used in the section.

A mosaic wall is divided into 100 equal sections. If 30 sections are reserved for orange tiles and 40 sections are reserved for blue tiles, what fraction of the mosaic wall is left for other colors

Tram says that - 1/4x-7+9/4x+2 is equivalent to 4x-7 is tran correct

3 times 3 times 3 in the distributive property?

A catering service offers appetizers, main courses, and desserts. A customer is to select appetizers, main courses, and desserts for a banquet. In how many ways can this be done?