Sam’s age is 3 years less than three times her brother’s age. Write an expression to represent Sam’s age. Use the variable b to represent her brother’s age.

Lindsay is creating a bridge out of dried pasta and glue. in her plans, she sketches the graph to determine the lengths of the noodles, in centimeters, needed for the arch to increase the length of the bridge in 1 centimeter increments.which function did lindsay use to create her design? f(x) = (x – 5)2 + 8 f(x) = –(x + 5)2 + 8 f(x) = 0.5(x + 5)2 + 8 f(x) = –0.5(x – 5)2 + 8

Josephine has a great garden with and area of 2x2 + x - 6 square feet

If square root x = -7, then x= -49 true or false