How would you use the fundamental theorem of calculus to determine the value(s) of b if the area under the graph g(x)=4x between x=1 and x=b is equal to 240?

How do you solve a question like this?

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?