Simplify the expression by combining like terms : 2b + 7b^2 - 2 + 3b - 1 + b what's da number that go n the box? ( ? ) b^2 + ( ? ) b + ( ? )

The bottom of ignacio's desktop is 74.5cm from the floor. ignacios sits in his adjustable chair, and the tops of his legs are 49.3cm from the floor. each clockwise rotation of the knob on the chair raises ignacio's legs by 4.8cm. write an inequality to determine the number of clockwise rotations, r, ignacio could make with the knob without his legs touching the desk.

Adriana had a garden where he measured the height of a corn plant. what. on the first day, it was 145 cm tall. after 2 weeks is grew by 23 cm. what is the height of the corn plant

At store a, erasers are sold individually. the cost y of x erasers is represented by the equation y=0.75x. the costs of erasers at store b are shown in the graph.