Answer:
900
Step-by-step explanation:
Answer:
16
Step-by-step explanation:
Answer:
x=30
Step-by-step explanation:
2x+2x+x+x=180
6x=180
x=30
Answer:
it's option B the second one
Answer:
5
Step-by-step explanation:
a minus times by another minus makes a positive, so it is basically 1 x 5