100 + 50
1,4,9,16,25,36,49,64,81,100,121,144
250%
+25%
2 1/2 hours.
4, 9, 25, 49, 121
151 rounds to150 to the nearest ten200 to the nearest hundred0 to the nearest thousand
between 70 to150
-27
a straight line,as always, adds up to 180*
A supplementary angle adds up to 90 degrees as a complementary adds up to 180 degrees
Assuming that "adds up to" means "its digits add up to" 888
The answers are: -5*-3 = 15, -8*7 = -56 and -4*-12 = 48