Answer:
A.
Step-by-step explanation:
That whole thing is a right angle, which is 90 degrees. put measure 1 and 2 and equal it to 90 and solve. 5x+x-12=90. combine like terms and solve for x. 6x-12=90. 6x=90+12. 6x= 102. x=17
Answer:
D, 5
Step-by-step explanation:
Answer:

Step-by-step explanation:

Answer:
74.48
Step-by-step explanation:
98% of 76 :
76 ÷ 100 = 0.76
multiply it with 98
0.76 × 98 = 74.48