((12+5)+20÷4))+4
first is parentheses inside out
12+5 = 17
((17)+20÷4))+4
now divide inside the parenthesis
(17+5)+4
next parentheses
22+4
26
Answer: 26
10×+30=12×
10×-12×=-30
-2×=-30
×=15
Yes they can have these angles.
Rule number 1 of triangles: ALL 3 ANGLES MUST ADD UP TO 180 DEGREES
Answer:
59.5 km
Step-by-step explanation:
3.5 by 17 Multiply the cm by the km and you get your answer
