Answer:
B
Step-by-step explanation:
y × y = 
y × -3 = -3y

7 hours because 1 load = 1 hour so 7 loads = 7 hours
Answer:
irregular heptagon
Step-by-step explanation:
The answer is 3x- I just took the text
Here,
cos(x) = sin(35)
cos(x) = cos(90-55)
cos(x) = cos(55)
x = 55