Answer:
Step-by-step explanation:
complementary angle- adds to 90°
90 degree angle because a right angle is always 90 degrees
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C
1. press 9
2. then the exponet key
3. then press 6
4. finally press the equal sign (=)
20
25/5 = 5
5 x 4 = 20
4 Hours because 50 times 4 is 200 and 200+75 is 275
