-30, 10*4=40 so you do 9-40+1 which is equal to -30
The answer is 20!
you need to change the subtraction sign to an addition sign and change -4 to a 4. then, solve!
hope this helps!!
60:1
I think anyway, I just know that there are 60 seconds in one minute so sixty to one, not completely sure tho
Answer:
M2+m3=90
Step-by-step explanation:
Angle 1 already is equal to 90. A triangle can only go up to 180 wo the other two angles have to add up to 90.
Answer:
b
Step-by-step explanation:
because we can not some times change the places in addition so b is the correct answer