Answer:
x<-2
Step-by-step explanation:
12x>6x+12-15 (first distribute)
12x>6x-3 (simplify)
6x>-3 (put like terms on one side by subtraction)
x<-2 (divide and switch inequality sign since you divided by a negative)
area=1/2bh
150=1/2×20×h
150=10h
150÷10
h=15
B
A number increased by 7 means, 7 was added to the number and the result is 15