Afamily spent $86 per week for food. this was 20 percent of its weekly outcome. what was its weekly outcome?

What are the soultion(s) to the quadratic equation 40- x^2=0

Plz hurry evaluate the expression a+b where a=8 and b=19

Mikes car gets an average of 28 mpg. there are 12 gallons of fuel in mikes car when he starts his trip of 140 miles. about how many gallons are left at the end of his trip?