A,b,c, d that’s the answer
Substitute -3 to x
(-3)^2 + 4(-3) + 1
9 - 12 + 1
= -2
2a. speed= distance
---------------
time
60÷69 = 52.1739 miles per hour.
so for the next one with the airplane flies 296 km in 276 min is the same formula.
296/276 = 39.9839 mph.
I couldn't see the first question clear...sorry but apply same formula.
Hoping this will help you
Rational numbers are numbers that can be turned into fractions. So A, C, D, E, F, G, H, and I are rational numbers
