$19.04. If your mom gave you $14.28, and it only covered 3/4 of the cost, you have to first find 3/4 as a percentage, and then put it into a decimal. It would be 0.75. So then you have to divide 14.28÷0.75. It turns out to be $19.04.

8 0

3 years ago

Gradient of a straight line that is perpendicular to y = 4x + 2

lana66690 [7]

If a line's slope is $\frac{a}{b}$ , the slope of the perpendicular line is $-\frac{b}{a}$
in this case, the given line has a slope 4, which is 4/1, so the perpendicular line has a slope/gradient $-\frac{1}{4}$

5 0

3 years ago

If n=4, the value of the expression 28-12 + Vn 2 is<br> 15<br> 17<br> 21 helpppppppp

ollegr [7]

Answer:

Step-by-step explanation:

3 0

3 years ago