Answer:
8
Step-by-step explanation:
DCB and ABC are right angles
DCB = 90 = 7x + 34
If 7x + 34 = 90, then 7x = 56 and x = 8
Hope this helps :)
She done better at the 2nd test because she only got 4 wrong but on the first test she got 6 wrong.
75,314 because it is only 5 numbers so this is correct.
