If petrol costs 212.5 cents per litre and Layla’s car travels 9.2 km per litre, how much will petrol cost (in dollars) for the 138...
y=9+(2/7)x
y=9+2/7x
9+6×3-4
y=3x+1
5x+6
sea f: R -> R una función derivable. Si la ecuación de la recta tangente al gráfico de f en el punto (2, f(2)) es y = 2x + 3 hall...
solve the following systems of linear equation by substitution method
x+3y
2x+y=5
18+2-4/2*8
