You could round 77 to 80 and 65 to 70 and then add 70 and 80 and you will get 150
x = -2, x = 5
=> f(x) = a(x+2)(x-5), a ∈ R
Answer:
20 seconds
Step-by-step explanation:
i think this is right
If Mallory makes $42.50 per hour and she works 20 hours a week, we multiple those two and we get:
42.5 * 20 = 850
So she earns $850 per week.
Mallory saves half of that amount she would have $425 per week.
In 4 weeks she would have:
425 * 4 = 1700
Mallory will save $1,700 in four weeks.
