The missing X value equals 5. The triangle was dilated by a scale factor of 3 and 15 / 3 = 5.
12,because each cake is cut into 4 slices and u have 3 cakes so 4 multiples by 3 is 12.
u( t - 2s)
double s is expressed as 2s
subtract this result from t gives t - 2s
multiply this result by u gives u × (t - 2s) = u( t - 2s)
Answer:
where did he get 4 from he has to solve for the y -intrtcept