Which exponential function does not have an x-intercept? a. f(x) = 5x – 5 – 1 b. f(x) = 5x – 5 – 5 c. f(x) = -5x – 5 + 5 d. f(x) = -5x – 5 – 1

50 points! antonio made a scale model of a building. the model's scale is 1 inch to 235 feet and its height is 3.5 inches. what is the exact height of the actual building? enter your answer in the box.

Rachel is studying the population of a particular bird species in a national park. she observes every 10th bird of that species that she can find in the park. her conclusion is that the birds living in the park who belong to that species generally feed on insects. rachel's sample is . based on the sample she picked, rachel's generalization is . reset next

Two years ago a man was six times as old as his daughter. in 18 years he will be twice as old as his daughter. determine their present ages.