Find the sum 49+50+51+52+...+141+142

This is fractions casey shared a pizza with some friends.they each ate 1 third of the pizza. how many people shared the pizza

The graph shows the distance y, in inches, a pendulum moves to the right (positive displacement) and to the left (negative displacement), for a given number of seconds x. how many seconds are required for the pendulum to move from its resting position and return? enter your answer in the box.

What is the value of x when x + 7 = 21?