Answer:
390cm
Step-by-step explanation:
1. find area of rectangle
1. 15cm x 20cm= 300 cm
2. find area of triangle
1. 1/2 (12 x 15)= 90cm
300+90
I think a would be 115 degrees. B would be 71 degrees. I think the second question would be c.
Answer:
d think
Step-by-step explanation:
I don't really know but I'm pretty sure that's it.
Answer:
A
Step-by-step explanation:
5 (-5 + n) = -3 - 6n
-25 + 5n = -3 - 6n
-25 + 11n = -3
11n = 22
n = 2
ones tens hundreds thousands millions billions and those are all the place value chart