F(-5) just means that your substituting the number -5 for every x value. So if you have x+1 this would be -5+1 which is -4
Your answer would be 31.04 m2
0 cause there is no yellow paint there is only blue paint
Double my tens digit to get my ones digit and double me and i am less than 50?
12,24
Hope I helped, good luck!
