If abce is a square, describe bfc in 2 ways

Prove that the value of the expression 7^8–7^7+7^6 is divisible by 43.

Can some one explain this i got sent this. is this a threat i’m scared

An unknown number x is at most 10. which graph best represents all the values of x? number line graph with closed circle on 10 and shading to the right. number line graph with open circle on 10 and shading to the right. number line graph with open circle on 10 and shading to the left. number line graph with closed circle on 10 and shading to the left.