Circle x is shown in the diagram. which equation can be used to solve for m∠1?
a m∠1 = 1/2(a – b)
b m∠1 =1/2 (a + b)
c m∠1 = 1/2(c – d)
d m∠1 = 1/2(c + d)

Asif spent $745.10 on 13 new file cabinets for his office. small file cabinets cost $43.50 and large file cabinets cost $65.95. write and solve a system of equations to find the number of small cabinets and large cabinets he purchased. determine if each statement is true or false. 1. he purchased 5 small cabinets. true or false 2. he purchased 7 large cabinets. true or false 3. he spent $527.60 on large cabinets. true or false

Evaluate the expression for the given value of the variable. 5×(h+3) for h=7

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?