Answer:
31.6
Step-by-step explanation:
26+18=44
90-44
Answer:
A
Step-by-step explanation:
We know that it is A because the two smaller angles are being added, and we know the sum is 90 degrees. The only equation that satisfies both of these is A.
Answer:
gas = $0.23, electricity = $0.10
Step-by-step explanation:
Answer:
3
Step-by-step explanation:
The triangles are similar by AA, so because corresponding sides of similar triangles are proportional,
(x+15)/15 = 12/10
(x+15) = 18
x = 3