Find the percent error of the measurement 7 cm.

Will give brainliest what is the value of x? enter your answer in the box.

Find the number of liters in 12.8 gal of gasoline. round to the nearest hundredths

Plzz ! if you were constructing a triangular frame, and you had wood in the length of 4 inches, 4 inches, and 7 inches, would it make a triangle? would you be able to create a frame from these pieces of wood? yes or no? = explain your mathematical thinking/show your work: