X+8y=4
x/2+3/y=13
solve the simultaneous equationsasap​ faster!!!

The marked price of an article is 25% above its selling price and the cost price is 30% less than its marked price . find the discount percent and gain percent. only a brainlest can solve it i will mark you brainlest

The half-life of a certain material is 0.004 second. approximately how much of a 20-gram sample will be left after 0.016 second? a. 5 grams b. 16 grams c. 0.32 gram d. 1.25 grams

Correct answer only ! which graph represents g(x) = (x − 3)^2 - 5?