Find X and the measure of Angle A, Angle B, and Angle C

Anyone know? will mark brainliest if correct

You are at a restaurant and owe $38 for your meal. you want to leave a 20% tip. how much will your tip be?

Match each whole number with a rational, exponential expression 3 square root 27^2find the domain and range of the exponential function h(x)=125^x. explain your findings. as x decreases does h increase or decrease? explain. as x increases does h increase or decrease? explain.