Pls help I’m being timed and I don’t understand a bit.

Olga bought a new skirt that cost $20. sales tax is 5%. how much did olga pay, including sales tax? 7.

Astocks price gained 3% in april and 5% in may and then lost 4% in june and 1% in july during which month did the stocks price change the most

Wow i want to vacation in mexico jeremih wow old vacation in mexico jeremiah we read read reads a distance marker that indicates he is 89 km from juarez if 1 mile approximately 1.61 km how far is jeremiah from juarez