Convert 0.5% to a decimal. 0.005 0.05 5.0 0.5. 35% of 70 is . 50 245 24.5. 90 is 50% of what number? 180 120 45. What is the total cost of a pair of jeans that are priced $50.00 if there is 7% sales tax? $57.50 $53.75 $55.50