5x + 13 and 10x - 7 represent the lengths in inches of 2 sides of an equilateral octagon. What is the length of one side

What is the value of the expression below? 148+(-6)| + |– 35= 7|

Ascientist has 50 grams of a radioactive element. the amount of radioactive element remaining after t days can be determined using the equation (1) after two days the scientist receives a second shipment of 50 grams of the same element. the equation used to represent the amount of shipment 2 remaining after t days is 10) - 50 which of the following is an equivalent form of the expression for the amount remaining in shipment 2? what’s the answer?

What is the difference between –12 and –5? what is the distance between –12 and –7 on a number line? units