5x10^9 times 2.3x10^7 in scientific notation form

Katie invests $5,000 in an account earning 4% interest, compounded annually for 5 years. Two years after Katie's initial investment, Emily invests $10,000 in an account earning 4% interest, compounded annually for 3 years.

My class collected 389 milk jugs we used 40 jugs. we gave 30 milk jugs to the first graders how many milk jugs did he have left

Round each decimal to the indicated 0.781; hundredths

A kitchen is 12 ft. by 14 ft. with 10 ft. high walls. How much would it cost to put wallpaper in this room? Cost = $

Two equations are shown Equation A:y=-5x-3, Equation B: y=4x+5 Which statement best compares the graphs of the two equations.

A taxi cab service charges it customers based on initials, fixed fee and a per-mile rate. The equation c=2.5m+5 models this situation, where c is the total cost of a ride and m is the number of miles traveled.

Sue's tire pressure gauge shows a reading which is 8% higher than the actual pressure. What Is the actual pressure when sue's gauge shows 39.42

Margie can walk 3.5 miles in 1 hour. Find the values of a, b, c, and d that complete the table showing this relationship. a = b = c = d =

Where in real life do people use parabolas? *apart from maths classrooms and mathematicians.

A helicopter flies 665 feet above ground. What is the measure of the angle of depression from the helicopter to the girl's line of sight? Round to the nearest degree.