Answer:
a. 57 b. 178
Step-by-step explanation:
6x9.5 = 56
13.5x10 = 135
135 - 57 = 78
are there any answer choices?
13
a = 3
b = -2
a² + b² = 3² + (-2)²
= 9 + 4
= 13
1, 33.3
2, 81.9
3, 240
4, the farmer sold 33.3 of his crops
5, 750 students are enrolled.