Answer:
The first one: 19/15a
second one: b²-4ac = D
Step-by-step explanation:
for first one: take LCM and solve
for second one: you square the expression on both sides then b²= D + 4ac, then when you take 4ac to the left hand side, it becomes b²-4ac= D
Answer:
a,d,e and f.
Step-by-step explanation:
hope this helps!
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Answer:
14
Step-by-step explanation:
you clean 2 a hour so 7*2=14
