Answer specify
Step-by-step explanation:
Don’t know
Answer:
x=4
Step-by-step explanation:
It would be 190 km because you do 5 x 3 to get 15 add a 0 at the end of it. Than at 40 because .8 of 150 is 40. Then 150+40= 190
Zeros do not count as a sigfig so when you do something like this problem just include the numbers until you hit your significant figure limit and then substitute zeros where you can. 20000
Supplementary is when it is a straight line that is equal to 180 degrees and complementary is a right angle which is 90 degrees
