15. An equilateral triangle has side lengths that can be represented by 1.2x - 8 units.
a. Write an expression to represent the
perimeter of the triangle.
b. If the triangle has a perimeter of 12 units,
find the value of x.

Can someone please help me out on this I got stuck on A, thank you so much very much appreciated!

Lance lived in portugal and brazil for a total of 14 months to learn portuguese. he learned an average of 130 new words per month when he lived in portugal, and an average of 150 new words per month when he lived in brazil. in total he learned 1920 new words. write a system of equations to represent the situation. use x to represent portugal, and y to represent brazil

Which shows the correct lengths of side c in both scales? scale 1: 45 m; scale 2: 60 m scale 1: 60 m; scale 2: 45 m scale 1: 36 m; scale 2: 27 m scale 1: 27 m; scale 2: 36 m mark this and return save and exit

The graph shows the distance kerri drives on a trip. what is kerri's speed?