12. The weight of 56
books is 8kg. What
is the weight of 154
such books?

Equation for the calculation double 2 and then add 5

If two angles of a triangle have equal measures and the third angle measures 90°, what are the angle measures of the triangle? a. 60°, 60°, 60° b. 45°, 90°, 90° c. 30°, 30°, 90° d. 45°, 45°, 90°

Solve for x: 5/3 x = 20/21 it's fraction. remember to simplify your fraction