A school has 617 students. Each class has between 28 and 32 students. Which is the best estimate of the number of classes in the school? 14 classes
20 classes
30 classes
60 classes

Which is the standard form for this number? (4 x 1 100 ) + (8 x 1 1,000 ) + ( 3 x 1 100,000 ) ? a) 0.004803 b) 0.04803 c) 0.0483 d) 0.483

Haruka hiked several kilometers in the morning. she hiked only 66 kilometers in the afternoon, which was 25% less than she had hiked in the morning. how many kilometers did haruka hike in all?

X2 + y 2 = 36 x + y = 6 solve the system of equations.